16590090 has 32 divisors (see below), whose sum is σ = 43436736. Its totient is φ = 4021760.

The previous prime is 16590089. The next prime is 16590103. The reversal of 16590090 is 9009561.

16590090 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 24807 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (1357398).

Almost surely, 2^16590090 is an apocalyptic number.

16590090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16590090 is an abundant number, since it is smaller than the sum of its proper divisors (26846646).

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

16590090 is a wasteful number, since it uses less digits than its factorization.

16590090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50294.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 16590090 is about 4073.0934190121. The cubic root of 16590090 is about 255.0446673003.

The spelling of 16590090 in words is "sixteen million, five hundred ninety thousand, ninety".