1392541628 has 12 divisors (see below), whose sum is σ = 2437510152. Its totient is φ = 696110160.

The previous prime is 1392541537. The next prime is 1392541637. The reversal of 1392541628 is 8261452931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19478 + ... + 56253.

It is an arithmetic number, because the mean of its divisors is an integer number (203125846).

Almost surely, 2^1392541628 is an apocalyptic number.

It is an amenable number.

1392541628 is a deficient number, since it is larger than the sum of its proper divisors (1044968524).

1392541628 is a wasteful number, since it uses less digits than its factorization.

1392541628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80332 (or 80330 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 1392541628 is about 37316.7740835137. The cubic root of 1392541628 is about 1116.6988328251.

The spelling of 1392541628 in words is "one billion, three hundred ninety-two million, five hundred forty-one thousand, six hundred twenty-eight".