1381969914 has 16 divisors (see below), whose sum is σ = 2976550752. Its totient is φ = 425221488.

The previous prime is 1381969879. The next prime is 1381969957. The reversal of 1381969914 is 4199691831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8858704 + ... + 8858859.

It is an arithmetic number, because the mean of its divisors is an integer number (186034422).

Almost surely, 2^1381969914 is an apocalyptic number.

1381969914 is an abundant number, since it is smaller than the sum of its proper divisors (1594580838).

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

1381969914 is a wasteful number, since it uses less digits than its factorization.

1381969914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17717581.

The product of its digits is 419904, while the sum is 51.

The square root of 1381969914 is about 37174.8559378513. The cubic root of 1381969914 is about 1113.8657824840.

The spelling of 1381969914 in words is "one billion, three hundred eighty-one million, nine hundred sixty-nine thousand, nine hundred fourteen".