16620954 has 16 divisors (see below), whose sum is σ = 37990848. Its totient is φ = 4748832.

The previous prime is 16620943. The next prime is 16620971. The reversal of 16620954 is 45902661.

It is a super-2 number, since 2×16620954² = 552512223740232, which contains 22 as substring.

It is a Curzon 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, 197827 + ... + 197910.

It is an arithmetic number, because the mean of its divisors is an integer number (2374428).

Almost surely, 2^16620954 is an apocalyptic number.

16620954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16620954 is an abundant number, since it is smaller than the sum of its proper divisors (21369894).

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

16620954 is a wasteful number, since it uses less digits than its factorization.

16620954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395749.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 16620954 is about 4076.8804250309. The cubic root of 16620954 is about 255.2027299787.

The spelling of 16620954 in words is "sixteen million, six hundred twenty thousand, nine hundred fifty-four".