1326472399 has 32 divisors (see below), whose sum is σ = 1623638016. Its totient is φ = 1059078240.

The previous prime is 1326472391. The next prime is 1326472409. The reversal of 1326472399 is 9932746231.

It is not a de Polignac number, because 1326472399 - 2³ = 1326472391 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326472391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322784 + ... + 2323354.

It is an arithmetic number, because the mean of its divisors is an integer number (50738688).

Almost surely, 2^1326472399 is an apocalyptic number.

1326472399 is a deficient number, since it is larger than the sum of its proper divisors (297165617).

1326472399 is a wasteful number, since it uses less digits than its factorization.

1326472399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955.

The product of its digits is 489888, while the sum is 46.

The square root of 1326472399 is about 36420.7687865042. The cubic root of 1326472399 is about 1098.7513100549.

The spelling of 1326472399 in words is "one billion, three hundred twenty-six million, four hundred seventy-two thousand, three hundred ninety-nine".