64120434 has 32 divisors (see below), whose sum is σ = 146881536. Its totient is φ = 18280080.

The previous prime is 64120409. The next prime is 64120453. The reversal of 64120434 is 43402146.

It is a super-2 number, since 2×64120434² = 8222860112696712, 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, 21579 + ... + 24369.

It is an arithmetic number, because the mean of its divisors is an integer number (4590048).

Almost surely, 2^64120434 is an apocalyptic number.

64120434 is an abundant number, since it is smaller than the sum of its proper divisors (82761102).

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

64120434 is a wasteful number, since it uses less digits than its factorization.

64120434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64120434 is about 8007.5235872272. The cubic root of 64120434 is about 400.2507469487.

The spelling of 64120434 in words is "sixty-four million, one hundred twenty thousand, four hundred thirty-four".