1304432280 has 48 divisors (see below), whose sum is σ = 4239406080. Its totient is φ = 347848512.

The previous prime is 1304432263. The next prime is 1304432293. The reversal of 1304432280 is 822344031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1811352 + ... + 1812071.

It is an arithmetic number, because the mean of its divisors is an integer number (88320960).

Almost surely, 2^1304432280 is an apocalyptic number.

1304432280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304432280 is an abundant number, since it is smaller than the sum of its proper divisors (2934973800).

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

1304432280 is a wasteful number, since it uses less digits than its factorization.

1304432280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623440 (or 3623433 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1304432280 is about 36116.9251182877. The cubic root of 1304432280 is about 1092.6318245139.

The spelling of 1304432280 in words is "one billion, three hundred four million, four hundred thirty-two thousand, two hundred eighty".