70078464 has 78 divisors (see below), whose sum is σ = 202530666. Its totient is φ = 23347200.

The previous prime is 70078429. The next prime is 70078483. The reversal of 70078464 is 46487007.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 24920064 = 6720^2 + 4992^2 .

It is a super-2 number, since 2×70078464² = 9821982233198592, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35914 + ... + 37814.

It is an arithmetic number, because the mean of its divisors is an integer number (2596547).

Almost surely, 2^70078464 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 70078464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101265333).

70078464 is an abundant number, since it is smaller than the sum of its proper divisors (132452202).

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

70078464 is a wasteful number, since it uses less digits than its factorization.

70078464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 70078464 is about 8371.2880729312. The cubic root of 70078464 is about 412.2824594002.

The spelling of 70078464 in words is "seventy million, seventy-eight thousand, four hundred sixty-four".