32400137 has 8 divisors (see below), whose sum is σ = 40395072. Its totient is φ = 25246800.

The previous prime is 32400131. The next prime is 32400139. The reversal of 32400137 is 73100423.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32400137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32400131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210314 + ... + 210467.

It is an arithmetic number, because the mean of its divisors is an integer number (5049384).

Almost surely, 2^32400137 is an apocalyptic number.

It is an amenable number.

32400137 is a deficient number, since it is larger than the sum of its proper divisors (7994935).

32400137 is a wasteful number, since it uses less digits than its factorization.

32400137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420799.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 32400137 is about 5692.1118225137. Note that the first 3 decimals coincide. The cubic root of 32400137 is about 318.7980200882.

The spelling of 32400137 in words is "thirty-two million, four hundred thousand, one hundred thirty-seven".