16959440 has 40 divisors (see below), whose sum is σ = 39640320. Its totient is φ = 6747776.

The previous prime is 16959413. The next prime is 16959469. The reversal of 16959440 is 4495961.

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

It is a super-2 number, since 2×16959440² = 575245210227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16959394 and 16959403.

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, 18677 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (991008).

Almost surely, 2^16959440 is an apocalyptic number.

16959440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16959440 is an abundant number, since it is smaller than the sum of its proper divisors (22680880).

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

16959440 is a wasteful number, since it uses less digits than its factorization.

16959440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 16959440 is about 4118.1840658232. The cubic root of 16959440 is about 256.9235037058.

The spelling of 16959440 in words is "sixteen million, nine hundred fifty-nine thousand, four hundred forty".