64049290 has 8 divisors (see below), whose sum is σ = 115288740. Its totient is φ = 25619712.

The previous prime is 64049269. The next prime is 64049309. The reversal of 64049290 is 9294046.

It can be written as a sum of positive squares in 2 ways, for example, as 56415121 + 7634169 = 7511^2 + 2763^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3202455 + ... + 3202474.

Almost surely, 2^64049290 is an apocalyptic number.

64049290 is a deficient number, since it is larger than the sum of its proper divisors (51239450).

64049290 is a wasteful number, since it uses less digits than its factorization.

64049290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404936.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 64049290 is about 8003.0800320876. The cubic root of 64049290 is about 400.1026611495.

The spelling of 64049290 in words is "sixty-four million, forty-nine thousand, two hundred ninety".