64240532 has 6 divisors (see below), whose sum is σ = 112420938. Its totient is φ = 32120264.

The previous prime is 64240529. The next prime is 64240549. The reversal of 64240532 is 23504246.

It can be written as a sum of positive squares in only one way, i.e., 58461316 + 5779216 = 7646^2 + 2404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8030063 + ... + 8030070.

It is an arithmetic number, because the mean of its divisors is an integer number (18736823).

Almost surely, 2^64240532 is an apocalyptic number.

It is an amenable number.

64240532 is a deficient number, since it is larger than the sum of its proper divisors (48180406).

64240532 is a wasteful number, since it uses less digits than its factorization.

64240532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16060137 (or 16060135 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64240532 is about 8015.0191515679. The cubic root of 64240532 is about 400.5004818669.

Adding to 64240532 its reverse (23504246), we get a palindrome (87744778).

The spelling of 64240532 in words is "sixty-four million, two hundred forty thousand, five hundred thirty-two".