1381972076 has 24 divisors (see below), whose sum is σ = 2479701840. Its totient is φ = 673516800.

The previous prime is 1381972069. The next prime is 1381972079. The reversal of 1381972076 is 6702791831.

It is not an unprimeable number, because it can be changed into a prime (1381972079) 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, 213455 + ... + 219833.

It is an arithmetic number, because the mean of its divisors is an integer number (103320910).

Almost surely, 2^1381972076 is an apocalyptic number.

It is an amenable number.

1381972076 is a deficient number, since it is larger than the sum of its proper divisors (1097729764).

1381972076 is a wasteful number, since it uses less digits than its factorization.

1381972076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745 (or 7743 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1381972076 is about 37174.8850166346. The cubic root of 1381972076 is about 1113.8663633400.

The spelling of 1381972076 in words is "one billion, three hundred eighty-one million, nine hundred seventy-two thousand, seventy-six".