1392274485 has 72 divisors (see below), whose sum is σ = 2904216120. Its totient is φ = 614492928.

The previous prime is 1392274459. The next prime is 1392274493. The reversal of 1392274485 is 5844722931.

1392274485 is a `hidden beast` number, since 13 + 92 + 2 + 74 + 485 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23126481 + 1369148004 = 4809^2 + 37002^2 .

It is not a de Polignac number, because 1392274485 - 2⁶ = 1392274421 is a prime.

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 1392274485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53059 + ... + 74831.

It is an arithmetic number, because the mean of its divisors is an integer number (40336335).

Almost surely, 2^1392274485 is an apocalyptic number.

1392274485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1392274485 is an abundant number, since it is smaller than the sum of its proper divisors (1511941635).

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

1392274485 is a wasteful number, since it uses less digits than its factorization.

1392274485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21827 (or 21817 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1392274485 is about 37313.1945161494. The cubic root of 1392274485 is about 1116.6274196746.

The spelling of 1392274485 in words is "one billion, three hundred ninety-two million, two hundred seventy-four thousand, four hundred eighty-five".