70436432 has 20 divisors (see below), whose sum is σ = 148877376. Its totient is φ = 32016480.

The previous prime is 70436413. The next prime is 70436441. The reversal of 70436432 is 23463407.

It is a happy number.

It is a super-2 number, since 2×70436432² = 9922581905781248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70436395 and 70436404.

It is a congruent number.

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, 199928 + ... + 200279.

Almost surely, 2^70436432 is an apocalyptic number.

It is an amenable number.

70436432 is an abundant number, since it is smaller than the sum of its proper divisors (78440944).

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

70436432 is a wasteful number, since it uses less digits than its factorization.

70436432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400226 (or 400220 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 70436432 is about 8392.6415388720. The cubic root of 70436432 is about 412.9832612273.

Adding to 70436432 its reverse (23463407), we get a palindrome (93899839).

The spelling of 70436432 in words is "seventy million, four hundred thirty-six thousand, four hundred thirty-two".