64342400 has 48 divisors (see below), whose sum is σ = 158953740. Its totient is φ = 25735680.

The previous prime is 64342393. The next prime is 64342403. The reversal of 64342400 is 424346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6854 + ... + 13253.

Almost surely, 2^64342400 is an apocalyptic number.

It is an amenable number.

64342400 is an abundant number, since it is smaller than the sum of its proper divisors (94611340).

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

64342400 is a wasteful number, since it uses less digits than its factorization.

64342400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20131 (or 20114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 64342400 is about 8021.3714538101. The cubic root of 64342400 is about 400.7120649898.

Adding to 64342400 its reverse (424346), we get a palindrome (64766746).

The spelling of 64342400 in words is "sixty-four million, three hundred forty-two thousand, four hundred".