16490775 has 48 divisors (see below), whose sum is σ = 31569408. Its totient is φ = 7440000.

The previous prime is 16490767. The next prime is 16490797. The reversal of 16490775 is 57709461.

It is not a de Polignac number, because 16490775 - 2³ = 16490767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52870 + ... + 53180.

It is an arithmetic number, because the mean of its divisors is an integer number (657696).

Almost surely, 2^16490775 is an apocalyptic number.

16490775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16490775 is a deficient number, since it is larger than the sum of its proper divisors (15078633).

16490775 is a wasteful number, since it uses less digits than its factorization.

16490775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 16490775 is about 4060.8835245547. The cubic root of 16490775 is about 254.5347147796.

The spelling of 16490775 in words is "sixteen million, four hundred ninety thousand, seven hundred seventy-five".