70020434 has 32 divisors (see below), whose sum is σ = 121651200. Its totient is φ = 29892240.

The previous prime is 70020407. The next prime is 70020449. The reversal of 70020434 is 43402007.

It is a happy number.

It is a super-2 number, since 2×70020434² = 9805722355096712, which contains 22 as substring.

It is a Curzon 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, 52427 + ... + 53745.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^70020434 is an apocalyptic number.

70020434 is a deficient number, since it is larger than the sum of its proper divisors (51630766).

70020434 is a wasteful number, since it uses less digits than its factorization.

70020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 70020434 is about 8367.8213413050. The cubic root of 70020434 is about 412.1686281479.

The spelling of 70020434 in words is "seventy million, twenty thousand, four hundred thirty-four".