70406432 has 24 divisors (see below), whose sum is σ = 143394300. Its totient is φ = 33988864.

The previous prime is 70406429. The next prime is 70406443. The reversal of 70406432 is 23460407.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69822736 + 583696 = 8356^2 + 764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37007 + ... + 38862.

Almost surely, 2^70406432 is an apocalyptic number.

It is an amenable number.

70406432 is an abundant number, since it is smaller than the sum of its proper divisors (72987868).

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

70406432 is a wasteful number, since it uses less digits than its factorization.

70406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75908 (or 75900 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 70406432 is about 8390.8540685678. The cubic root of 70406432 is about 412.9246208483.

Adding to 70406432 its reverse (23460407), we get a palindrome (93866839).

The spelling of 70406432 in words is "seventy million, four hundred six thousand, four hundred thirty-two".