326742990 has 32 divisors (see below), whose sum is σ = 896209920. Its totient is φ = 74684064.

The previous prime is 326742989. The next prime is 326743031. The reversal of 326742990 is 99247623.

It is a happy number.

326742990 is digitally balanced in base 3, because in such base 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 (42).

It is a congruent number.

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, 777750 + ... + 778169.

It is an arithmetic number, because the mean of its divisors is an integer number (28006560).

Almost surely, 2^326742990 is an apocalyptic number.

326742990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

326742990 is an abundant number, since it is smaller than the sum of its proper divisors (569466930).

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

326742990 is a wasteful number, since it uses less digits than its factorization.

326742990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555936.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 326742990 is about 18076.0335804070. The cubic root of 326742990 is about 688.7613357994.

The spelling of 326742990 in words is "three hundred twenty-six million, seven hundred forty-two thousand, nine hundred ninety".