163042590 has 32 divisors (see below), whose sum is σ = 392306976. Its totient is φ = 43366400.

The previous prime is 163042589. The next prime is 163042613. The reversal of 163042590 is 95240361.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5254 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (12259593).

Almost surely, 2^163042590 is an apocalyptic number.

163042590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163042590 is an abundant number, since it is smaller than the sum of its proper divisors (229264386).

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

163042590 is a wasteful number, since it uses less digits than its factorization.

163042590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13964.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 163042590 is about 12768.8131789920. The cubic root of 163042590 is about 546.3031297216.

The spelling of 163042590 in words is "one hundred sixty-three million, forty-two thousand, five hundred ninety".