70857424 has 40 divisors (see below), whose sum is σ = 150311808. Its totient is φ = 32090880.

The previous prime is 70857401. The next prime is 70857473. The reversal of 70857424 is 42475807.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 64044 + ... + 65140.

Almost surely, 2^70857424 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 70857424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75155904).

70857424 is an abundant number, since it is smaller than the sum of its proper divisors (79454384).

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

70857424 is a wasteful number, since it uses less digits than its factorization.

70857424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 70857424 is about 8417.6851924980. The cubic root of 70857424 is about 413.8044149156.

The spelling of 70857424 in words is "seventy million, eight hundred fifty-seven thousand, four hundred twenty-four".