1390013850 has 48 divisors (see below), whose sum is σ = 3453484320. Its totient is φ = 369998400.

The previous prime is 1390013839. The next prime is 1390013869. The reversal of 1390013850 is 583100931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 77536 + ... + 93764.

It is an arithmetic number, because the mean of its divisors is an integer number (71947590).

Almost surely, 2^1390013850 is an apocalyptic number.

1390013850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390013850 is an abundant number, since it is smaller than the sum of its proper divisors (2063470470).

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

1390013850 is a wasteful number, since it uses less digits than its factorization.

1390013850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16815 (or 16810 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1390013850 is about 37282.8895071184. The cubic root of 1390013850 is about 1116.0227365905.

The spelling of 1390013850 in words is "one billion, three hundred ninety million, thirteen thousand, eight hundred fifty".