16801240 has 32 divisors (see below), whose sum is σ = 38070000. Its totient is φ = 6673024.

The previous prime is 16801223. The next prime is 16801243. The reversal of 16801240 is 4210861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16801243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 7369.

Almost surely, 2^16801240 is an apocalyptic number.

16801240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16801240 is an abundant number, since it is smaller than the sum of its proper divisors (21268760).

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

16801240 is a wasteful number, since it uses less digits than its factorization.

16801240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 16801240 is about 4098.9315681041. The cubic root of 16801240 is about 256.1221341050.

The spelling of 16801240 in words is "sixteen million, eight hundred one thousand, two hundred forty".