64249406 has 24 divisors (see below), whose sum is σ = 104837040. Its totient is φ = 29517696.

The previous prime is 64249403. The next prime is 64249411. The reversal of 64249406 is 60494246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64249403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146135 + ... + 146573.

It is an arithmetic number, because the mean of its divisors is an integer number (4368210).

Almost surely, 2^64249406 is an apocalyptic number.

64249406 is a deficient number, since it is larger than the sum of its proper divisors (40587634).

64249406 is a wasteful number, since it uses less digits than its factorization.

64249406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 64249406 is about 8015.5727181531. The cubic root of 64249406 is about 400.5189223412.

The spelling of 64249406 in words is "sixty-four million, two hundred forty-nine thousand, four hundred six".