16840995 has 16 divisors (see below), whose sum is σ = 27031200. Its totient is φ = 8953344.

The previous prime is 16840981. The next prime is 16841003. The reversal of 16840995 is 59904861.

It is not a de Polignac number, because 16840995 - 2⁵ = 16840963 is a prime.

It is a super-2 number, since 2×16840995² = 567238225180050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (1689450).

Almost surely, 2^16840995 is an apocalyptic number.

16840995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16840995 is a deficient number, since it is larger than the sum of its proper divisors (10190205).

16840995 is a wasteful number, since it uses less digits than its factorization.

16840995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 16840995 is about 4103.7781372779. The cubic root of 16840995 is about 256.3239865677.

The spelling of 16840995 in words is "sixteen million, eight hundred forty thousand, nine hundred ninety-five".