1380870870 has 32 divisors (see below), whose sum is σ = 3321603072. Its totient is φ = 367397472.

The previous prime is 1380870853. The next prime is 1380870929. The reversal of 1380870870 is 780780831.

It is a super-2 number, since 2×1380870870² = 3813608719229113800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38662 + ... + 65241.

It is an arithmetic number, because the mean of its divisors is an integer number (103800096).

Almost surely, 2^1380870870 is an apocalyptic number.

1380870870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380870870 is an abundant number, since it is smaller than the sum of its proper divisors (1940732202).

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

1380870870 is a wasteful number, since it uses less digits than its factorization.

1380870870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104356.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 1380870870 is about 37160.0709095125. The cubic root of 1380870870 is about 1113.5704282081.

The spelling of 1380870870 in words is "one billion, three hundred eighty million, eight hundred seventy thousand, eight hundred seventy".