70639296 has 168 divisors, whose sum is σ = 232038144. Its totient is φ = 18570240.

The previous prime is 70639291. The next prime is 70639333. The reversal of 70639296 is 69293607.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70639291) 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, 226981 + ... + 227291.

Almost surely, 2^70639296 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 70639296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116019072).

70639296 is an abundant number, since it is smaller than the sum of its proper divisors (161398848).

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

70639296 is a wasteful number, since it uses less digits than its factorization.

70639296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 70639296 is about 8404.7186746494. The cubic root of 70639296 is about 413.3793589631.

The spelling of 70639296 in words is "seventy million, six hundred thirty-nine thousand, two hundred ninety-six".