1304016420 has 72 divisors (see below), whose sum is σ = 4247377344. Its totient is φ = 298060224.

The previous prime is 1304016347. The next prime is 1304016479. The reversal of 1304016420 is 246104031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218832 + ... + 224711.

It is an arithmetic number, because the mean of its divisors is an integer number (58991352).

Almost surely, 2^1304016420 is an apocalyptic number.

1304016420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304016420 is an abundant number, since it is smaller than the sum of its proper divisors (2943360924).

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

1304016420 is a wasteful number, since it uses less digits than its factorization.

1304016420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443569 (or 443560 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1304016420 is about 36111.1675247423. The cubic root of 1304016420 is about 1092.5156998793.

The spelling of 1304016420 in words is "one billion, three hundred four million, sixteen thousand, four hundred twenty".