64372449 has 8 divisors (see below), whose sum is σ = 86357152. Its totient is φ = 42651360.

The previous prime is 64372411. The next prime is 64372453. The reversal of 64372449 is 94427346.

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

It is a de Polignac number, because none of the positive numbers 2^k-64372449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64372949) 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, 65332 + ... + 66309.

It is an arithmetic number, because the mean of its divisors is an integer number (10794644).

Almost surely, 2^64372449 is an apocalyptic number.

It is an amenable number.

64372449 is a deficient number, since it is larger than the sum of its proper divisors (21984703).

64372449 is a wasteful number, since it uses less digits than its factorization.

64372449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131807.

The product of its digits is 145152, while the sum is 39.

The square root of 64372449 is about 8023.2442939250. The cubic root of 64372449 is about 400.7744350748.

The spelling of 64372449 in words is "sixty-four million, three hundred seventy-two thousand, four hundred forty-nine".