1396748590 has 16 divisors (see below), whose sum is σ = 2540068272. Its totient is φ = 552939264.

The previous prime is 1396748581. The next prime is 1396748609. The reversal of 1396748590 is 958476931.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 719004 + ... + 720943.

It is an arithmetic number, because the mean of its divisors is an integer number (158754267).

Almost surely, 2^1396748590 is an apocalyptic number.

1396748590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1396748590 is a deficient number, since it is larger than the sum of its proper divisors (1143319682).

1396748590 is a wasteful number, since it uses less digits than its factorization.

1396748590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440051.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1396748590 is about 37373.0998179172. The cubic root of 1396748590 is about 1117.8222430664.

The spelling of 1396748590 in words is "one billion, three hundred ninety-six million, seven hundred forty-eight thousand, five hundred ninety".