16130640 has 40 divisors (see below), whose sum is σ = 50005728. Its totient is φ = 4301440.

The previous prime is 16130629. The next prime is 16130669. The reversal of 16130640 is 4603161.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33366 + ... + 33845.

Almost surely, 2^16130640 is an apocalyptic number.

16130640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16130640 is an abundant number, since it is smaller than the sum of its proper divisors (33875088).

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

16130640 is a wasteful number, since it uses less digits than its factorization.

16130640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67227 (or 67221 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16130640 is about 4016.2968017815. The cubic root of 16130640 is about 252.6681688596.

The spelling of 16130640 in words is "sixteen million, one hundred thirty thousand, six hundred forty".