1307405412 has 18 divisors (see below), whose sum is σ = 3304830438. Its totient is φ = 435801792.

The previous prime is 1307405389. The next prime is 1307405423. The reversal of 1307405412 is 2145047031.

It can be written as a sum of positive squares in only one way, i.e., 828058176 + 479347236 = 28776^2 + 21894^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1307405412² = 3418617822653779488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18158373 + ... + 18158444.

It is an arithmetic number, because the mean of its divisors is an integer number (183601691).

Almost surely, 2^1307405412 is an apocalyptic number.

1307405412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1307405412 is an abundant number, since it is smaller than the sum of its proper divisors (1997425026).

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

1307405412 is a wasteful number, since it uses less digits than its factorization.

1307405412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36316827 (or 36316822 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1307405412 is about 36158.0615077744. The cubic root of 1307405412 is about 1093.4613229684.

The spelling of 1307405412 in words is "one billion, three hundred seven million, four hundred five thousand, four hundred twelve".