1381188474 has 48 divisors (see below), whose sum is σ = 3048343584. Its totient is φ = 451850400.

The previous prime is 1381188467. The next prime is 1381188499. The reversal of 1381188474 is 4748811831.

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, 625857 + ... + 628059.

It is an arithmetic number, because the mean of its divisors is an integer number (63507158).

Almost surely, 2^1381188474 is an apocalyptic number.

1381188474 is an abundant number, since it is smaller than the sum of its proper divisors (1667155110).

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

1381188474 is a wasteful number, since it uses less digits than its factorization.

1381188474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843 (or 2840 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 1381188474 is about 37164.3441217520. The cubic root of 1381188474 is about 1113.6557963908.

The spelling of 1381188474 in words is "one billion, three hundred eighty-one million, one hundred eighty-eight thousand, four hundred seventy-four".