1392522490 has 32 divisors (see below), whose sum is σ = 2528475264. Its totient is φ = 552152640.

The previous prime is 1392522473. The next prime is 1392522553. The reversal of 1392522490 is 942252931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920835 + ... + 922345.

It is an arithmetic number, because the mean of its divisors is an integer number (79014852).

Almost surely, 2^1392522490 is an apocalyptic number.

1392522490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1392522490 is a deficient number, since it is larger than the sum of its proper divisors (1135952774).

1392522490 is a wasteful number, since it uses less digits than its factorization.

1392522490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1392522490 is about 37316.5176563945. The cubic root of 1392522490 is about 1116.6937171240.

The spelling of 1392522490 in words is "one billion, three hundred ninety-two million, five hundred twenty-two thousand, four hundred ninety".