16535790 has 48 divisors (see below), whose sum is σ = 43203888. Its totient is φ = 4387968.

The previous prime is 16535773. The next prime is 16535791. The reversal of 16535790 is 9753561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16535791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27877 + ... + 28463.

It is an arithmetic number, because the mean of its divisors is an integer number (900081).

Almost surely, 2^16535790 is an apocalyptic number.

16535790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16535790 is an abundant number, since it is smaller than the sum of its proper divisors (26668098).

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

16535790 is a wasteful number, since it uses less digits than its factorization.

16535790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 16535790 is about 4066.4222604152. The cubic root of 16535790 is about 254.7661061769.

The spelling of 16535790 in words is "sixteen million, five hundred thirty-five thousand, seven hundred ninety".