64892040 has 64 divisors (see below), whose sum is σ = 195212160. Its totient is φ = 17256960.

The previous prime is 64892017. The next prime is 64892041. The reversal of 64892040 is 4029846.

64892040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64891992 and 64892010.

It is not an unprimeable number, because it can be changed into a prime (64892041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75292 + ... + 76148.

It is an arithmetic number, because the mean of its divisors is an integer number (3050190).

Almost surely, 2^64892040 is an apocalyptic number.

64892040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64892040 is an abundant number, since it is smaller than the sum of its proper divisors (130320120).

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

64892040 is a wasteful number, since it uses less digits than its factorization.

64892040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 64892040 is about 8055.5595708802. The cubic root of 64892040 is about 401.8498486291.

The spelling of 64892040 in words is "sixty-four million, eight hundred ninety-two thousand, forty".