1381692012 has 12 divisors (see below), whose sum is σ = 3223948056. Its totient is φ = 460564000.

The previous prime is 1381691939. The next prime is 1381692043. The reversal of 1381692012 is 2102961831.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57570489 + ... + 57570512.

It is an arithmetic number, because the mean of its divisors is an integer number (268662338).

Almost surely, 2^1381692012 is an apocalyptic number.

1381692012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1381692012 is an abundant number, since it is smaller than the sum of its proper divisors (1842256044).

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

1381692012 is a wasteful number, since it uses less digits than its factorization.

1381692012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115141008 (or 115141006 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1381692012 is about 37171.1179815727. The cubic root of 1381692012 is about 1113.7911146067.

The spelling of 1381692012 in words is "one billion, three hundred eighty-one million, six hundred ninety-two thousand, twelve".