326438398 has 32 divisors (see below), whose sum is σ = 580077792. Its totient is φ = 136952640.

The previous prime is 326438393. The next prime is 326438417. The reversal of 326438398 is 893834623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326438393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29890 + ... + 39322.

It is an arithmetic number, because the mean of its divisors is an integer number (18127431).

Almost surely, 2^326438398 is an apocalyptic number.

326438398 is a deficient number, since it is larger than the sum of its proper divisors (253639394).

326438398 is a wasteful number, since it uses less digits than its factorization.

326438398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481 (or 9459 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 326438398 is about 18067.6063162778. The cubic root of 326438398 is about 688.5472466196.

It can be divided in two parts, 326438 and 398, that added together give a triangular number (326836 = T₈₀₈).

The spelling of 326438398 in words is "three hundred twenty-six million, four hundred thirty-eight thousand, three hundred ninety-eight".