1392392 has 8 divisors (see below), whose sum is σ = 2610750. Its totient is φ = 696192.

The previous prime is 1392379. The next prime is 1392407. The reversal of 1392392 is 2932931.

It can be written as a sum of positive squares in only one way, i.e., 1136356 + 256036 = 1066^2 + 506^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87017 + ... + 87032.

2^1392392 is an apocalyptic number.

It is an amenable number.

1392392 is a deficient number, since it is larger than the sum of its proper divisors (1218358).

1392392 is a wasteful number, since it uses less digits than its factorization.

1392392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174055 (or 174051 counting only the distinct ones).

The product of its digits is 2916, while the sum is 29.

The square root of 1392392 is about 1179.9966101646. The cubic root of 1392392 is about 111.6658835122.

The spelling of 1392392 in words is "one million, three hundred ninety-two thousand, three hundred ninety-two".