64409476 has 12 divisors (see below), whose sum is σ = 117617472. Its totient is φ = 30804488.

The previous prime is 64409467. The next prime is 64409479. The reversal of 64409476 is 67490446.

It is not an unprimeable number, because it can be changed into a prime (64409479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349960 + ... + 350143.

It is an arithmetic number, because the mean of its divisors is an integer number (9801456).

Almost surely, 2^64409476 is an apocalyptic number.

It is an amenable number.

64409476 is a deficient number, since it is larger than the sum of its proper divisors (53207996).

64409476 is a wasteful number, since it uses less digits than its factorization.

64409476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700130 (or 700128 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 64409476 is about 8025.5514452279. The cubic root of 64409476 is about 400.8512620970.

The spelling of 64409476 in words is "sixty-four million, four hundred nine thousand, four hundred seventy-six".