326473780 has 24 divisors (see below), whose sum is σ = 725924808. Its totient is φ = 122907648.

The previous prime is 326473757. The next prime is 326473787. The reversal of 326473780 is 87374623.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3984016 + 322489764 = 1996^2 + 17958^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326473787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479769 + ... + 480448.

It is an arithmetic number, because the mean of its divisors is an integer number (30246867).

Almost surely, 2^326473780 is an apocalyptic number.

It is an amenable number.

326473780 is an abundant number, since it is smaller than the sum of its proper divisors (399451028).

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

326473780 is a wasteful number, since it uses less digits than its factorization.

326473780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960243 (or 960241 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 326473780 is about 18068.5854454631. The cubic root of 326473780 is about 688.5721224703.

The spelling of 326473780 in words is "three hundred twenty-six million, four hundred seventy-three thousand, seven hundred eighty".