1904130012 has 24 divisors (see below), whose sum is σ = 4447544976. Its totient is φ = 634056448.

The previous prime is 1904129989. The next prime is 1904130013. The reversal of 1904130012 is 2100314091.

It is a super-2 number, since 2×1904130012² = 7251422205198240288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904130013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69483 + ... + 92930.

It is an arithmetic number, because the mean of its divisors is an integer number (185314374).

Almost surely, 2^1904130012 is an apocalyptic number.

1904130012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1904130012 is an abundant number, since it is smaller than the sum of its proper divisors (2543414964).

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

1904130012 is a wasteful number, since it uses less digits than its factorization.

1904130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163397 (or 163395 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1904130012 is about 43636.3382056744. The cubic root of 1904130012 is about 1239.4590972460.

The spelling of 1904130012 in words is "one billion, nine hundred four million, one hundred thirty thousand, twelve".