1390089285 has 48 divisors (see below), whose sum is σ = 2602454400. Its totient is φ = 682342272.

The previous prime is 1390089209. The next prime is 1390089319. The reversal of 1390089285 is 5829800931.

It is a happy number.

It is not a de Polignac number, because 1390089285 - 2¹⁵ = 1390056517 is a prime.

It is a super-2 number, since 2×1390089285² = 3864696440543622450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1390089285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206706 + ... + 213324.

It is an arithmetic number, because the mean of its divisors is an integer number (54217800).

Almost surely, 2^1390089285 is an apocalyptic number.

1390089285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1390089285 is a deficient number, since it is larger than the sum of its proper divisors (1212365115).

1390089285 is a wasteful number, since it uses less digits than its factorization.

1390089285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002 (or 6999 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 1390089285 is about 37283.9011504966. The cubic root of 1390089285 is about 1116.0429247952.

The spelling of 1390089285 in words is "one billion, three hundred ninety million, eighty-nine thousand, two hundred eighty-five".