1304661572 has 12 divisors (see below), whose sum is σ = 2321855760. Its totient is φ = 641274216.

The previous prime is 1304661571. The next prime is 1304661601. The reversal of 1304661572 is 2751664031.

It is a super-2 number, since 2×1304661572² = 3404283634907022368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1304661571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763878 + ... + 2764349.

It is an arithmetic number, because the mean of its divisors is an integer number (193487980).

Almost surely, 2^1304661572 is an apocalyptic number.

It is an amenable number.

1304661572 is a deficient number, since it is larger than the sum of its proper divisors (1017194188).

1304661572 is a wasteful number, since it uses less digits than its factorization.

1304661572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528290 (or 5528288 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1304661572 is about 36120.0992800407. The cubic root of 1304661572 is about 1092.6958413949.

The spelling of 1304661572 in words is "one billion, three hundred four million, six hundred sixty-one thousand, five hundred seventy-two".