70403928 has 64 divisors (see below), whose sum is σ = 204975360. Its totient is φ = 19733376.

The previous prime is 70403887. The next prime is 70403939. The reversal of 70403928 is 82930407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4951 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (3202740).

Almost surely, 2^70403928 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 70403928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102487680).

70403928 is an abundant number, since it is smaller than the sum of its proper divisors (134571432).

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

70403928 is a wasteful number, since it uses less digits than its factorization.

70403928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976 (or 7972 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 70403928 is about 8390.7048571619. The cubic root of 70403928 is about 412.9197255782.

The spelling of 70403928 in words is "seventy million, four hundred three thousand, nine hundred twenty-eight".