16255840 has 24 divisors (see below), whose sum is σ = 38404800. Its totient is φ = 6502272.

The previous prime is 16255831. The next prime is 16255847. The reversal of 16255840 is 4855261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16255847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50640 + ... + 50959.

It is an arithmetic number, because the mean of its divisors is an integer number (1600200).

Almost surely, 2^16255840 is an apocalyptic number.

16255840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16255840 is an abundant number, since it is smaller than the sum of its proper divisors (22148960).

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

16255840 is a wasteful number, since it uses less digits than its factorization.

16255840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101614 (or 101606 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 16255840 is about 4031.8531719298. The cubic root of 16255840 is about 253.3201901461.

The spelling of 16255840 in words is "sixteen million, two hundred fifty-five thousand, eight hundred forty".