64396254 has 16 divisors (see below), whose sum is σ = 138699792. Its totient is φ = 19814208.

The previous prime is 64396253. The next prime is 64396271. The reversal of 64396254 is 45269346.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64396253) 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, 412719 + ... + 412874.

It is an arithmetic number, because the mean of its divisors is an integer number (8668737).

Almost surely, 2^64396254 is an apocalyptic number.

64396254 is an abundant number, since it is smaller than the sum of its proper divisors (74303538).

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

64396254 is a wasteful number, since it uses less digits than its factorization.

64396254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825611.

The product of its digits is 155520, while the sum is 39.

The square root of 64396254 is about 8024.7276589302. The cubic root of 64396254 is about 400.8238312570.

The spelling of 64396254 in words is "sixty-four million, three hundred ninety-six thousand, two hundred fifty-four".