326439378 has 12 divisors (see below), whose sum is σ = 707285358. Its totient is φ = 108813120.

The previous prime is 326439371. The next prime is 326439383. The reversal of 326439378 is 873934623.

It can be written as a sum of positive squares in only one way, i.e., 231435369 + 95004009 = 15213^2 + 9747^2 .

It is not an unprimeable number, because it can be changed into a prime (326439371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9067743 + ... + 9067778.

Almost surely, 2^326439378 is an apocalyptic number.

326439378 is an abundant number, since it is smaller than the sum of its proper divisors (380845980).

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

326439378 is a wasteful number, since it uses less digits than its factorization.

326439378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18135529 (or 18135526 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 326439378 is about 18067.6334366181. The cubic root of 326439378 is about 688.5479356476.

The spelling of 326439378 in words is "three hundred twenty-six million, four hundred thirty-nine thousand, three hundred seventy-eight".