1385785902 has 24 divisors (see below), whose sum is σ = 2789000424. Its totient is φ = 459041904.

The previous prime is 1385785883. The next prime is 1385785939. The reversal of 1385785902 is 2095875831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155068 + ... + 163760.

It is an arithmetic number, because the mean of its divisors is an integer number (116208351).

Almost surely, 2^1385785902 is an apocalyptic number.

1385785902 is an abundant number, since it is smaller than the sum of its proper divisors (1403214522).

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

1385785902 is an equidigital number, since it uses as much as digits as its factorization.

1385785902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024 (or 8861 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 1385785902 is about 37226.1454088387. The cubic root of 1385785902 is about 1114.8900672515.

The spelling of 1385785902 in words is "one billion, three hundred eighty-five million, seven hundred eighty-five thousand, nine hundred two".