1390532208 has 40 divisors (see below), whose sum is σ = 3868533648. Its totient is φ = 427855872.

The previous prime is 1390532189. The next prime is 1390532317. The reversal of 1390532208 is 8022350931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113585 + ... + 1114832.

Almost surely, 2^1390532208 is an apocalyptic number.

It is an amenable number.

1390532208 is an abundant number, since it is smaller than the sum of its proper divisors (2478001440).

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

1390532208 is a wasteful number, since it uses less digits than its factorization.

1390532208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228441 (or 2228435 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1390532208 is about 37289.8405467226. The cubic root of 1390532208 is about 1116.1614468195.

The spelling of 1390532208 in words is "one billion, three hundred ninety million, five hundred thirty-two thousand, two hundred eight".