16950640 has 40 divisors (see below), whose sum is σ = 45041760. Its totient is φ = 5811456.

The previous prime is 16950631. The next prime is 16950697. The reversal of 16950640 is 4605961.

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

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, 14575 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (1126044).

Almost surely, 2^16950640 is an apocalyptic number.

16950640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16950640 is an abundant number, since it is smaller than the sum of its proper divisors (28091120).

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

16950640 is a wasteful number, since it uses less digits than its factorization.

16950640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30289 (or 30283 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16950640 is about 4117.1154951009. The cubic root of 16950640 is about 256.8790580952.

The spelling of 16950640 in words is "sixteen million, nine hundred fifty thousand, six hundred forty".