16266940 has 24 divisors (see below), whose sum is σ = 35263872. Its totient is φ = 6296640.

The previous prime is 16266937. The next prime is 16266947. The reversal of 16266940 is 4966261.

It is a super-2 number, since 2×16266940² = 529226673927200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16266896 and 16266905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16266947) 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, 12499 + ... + 13738.

It is an arithmetic number, because the mean of its divisors is an integer number (1469328).

Almost surely, 2^16266940 is an apocalyptic number.

16266940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16266940 is an abundant number, since it is smaller than the sum of its proper divisors (18996932).

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

16266940 is a wasteful number, since it uses less digits than its factorization.

16266940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26277 (or 26275 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 16266940 is about 4033.2294752469. The cubic root of 16266940 is about 253.3778353646.

The spelling of 16266940 in words is "sixteen million, two hundred sixty-six thousand, nine hundred forty".