1304431442 has 32 divisors (see below), whose sum is σ = 2057171904. Its totient is φ = 619819200.

The previous prime is 1304431439. The next prime is 1304431451. The reversal of 1304431442 is 2441344031.

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, 431717 + ... + 434727.

It is an arithmetic number, because the mean of its divisors is an integer number (64286622).

Almost surely, 2^1304431442 is an apocalyptic number.

1304431442 is a deficient number, since it is larger than the sum of its proper divisors (752740462).

1304431442 is a wasteful number, since it uses less digits than its factorization.

1304431442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1304431442 is about 36116.9135170767. The cubic root of 1304431442 is about 1092.6315905358.

Adding to 1304431442 its reverse (2441344031), we get a palindrome (3745775473).

The spelling of 1304431442 in words is "one billion, three hundred four million, four hundred thirty-one thousand, four hundred forty-two".