70383456 has 144 divisors (see below), whose sum is σ = 235282320. Its totient is φ = 19676160.

The previous prime is 70383449. The next prime is 70383457. The reversal of 70383456 is 65438307.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70383456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70383457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40330 + ... + 42038.

It is an arithmetic number, because the mean of its divisors is an integer number (1633905).

Almost surely, 2^70383456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70383456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117641160).

70383456 is an abundant number, since it is smaller than the sum of its proper divisors (164898864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70383456 is a wasteful number, since it uses less digits than its factorization.

70383456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 70383456 is about 8389.4848471167. The cubic root of 70383456 is about 412.8796988716.

The spelling of 70383456 in words is "seventy million, three hundred eighty-three thousand, four hundred fifty-six".