64012290 has 16 divisors (see below), whose sum is σ = 153629568. Its totient is φ = 17069936.

The previous prime is 64012253. The next prime is 64012297. The reversal of 64012290 is 9221046.

It is a self number, because there is not a number n which added to its sum of digits gives 64012290.

It is not an unprimeable number, because it can be changed into a prime (64012297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066842 + ... + 1066901.

It is an arithmetic number, because the mean of its divisors is an integer number (9601848).

Almost surely, 2^64012290 is an apocalyptic number.

64012290 is an abundant number, since it is smaller than the sum of its proper divisors (89617278).

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

64012290 is a wasteful number, since it uses less digits than its factorization.

64012290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133753.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 64012290 is about 8000.7680881275. The cubic root of 64012290 is about 400.0256025279.

The spelling of 64012290 in words is "sixty-four million, twelve thousand, two hundred ninety".