1213432004 has 6 divisors (see below), whose sum is σ = 2123506014. Its totient is φ = 606716000.

The previous prime is 1213431943. The next prime is 1213432013. The reversal of 1213432004 is 4002343121.

It can be written as a sum of positive squares in only one way, i.e., 1147854400 + 65577604 = 33880^2 + 8098^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151678997 + ... + 151679004.

It is an arithmetic number, because the mean of its divisors is an integer number (353917669).

Almost surely, 2^1213432004 is an apocalyptic number.

It is an amenable number.

1213432004 is a deficient number, since it is larger than the sum of its proper divisors (910074010).

1213432004 is a wasteful number, since it uses less digits than its factorization.

1213432004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303358005 (or 303358003 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1213432004 is about 34834.3509197459. The cubic root of 1213432004 is about 1066.6087653900.

Adding to 1213432004 its reverse (4002343121), we get a palindrome (5215775125).

The spelling of 1213432004 in words is "one billion, two hundred thirteen million, four hundred thirty-two thousand, four".