70457742 has 32 divisors (see below), whose sum is σ = 157301760. Its totient is φ = 23376600.

The previous prime is 70457729. The next prime is 70457759. The reversal of 70457742 is 24775407.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70457697 and 70457706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9117 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (4915680).

Almost surely, 2^70457742 is an apocalyptic number.

70457742 is an abundant number, since it is smaller than the sum of its proper divisors (86844018).

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

70457742 is a wasteful number, since it uses less digits than its factorization.

70457742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 70457742 is about 8393.9110073910. The cubic root of 70457742 is about 413.0249053295.

The spelling of 70457742 in words is "seventy million, four hundred fifty-seven thousand, seven hundred forty-two".