1391492 has 6 divisors (see below), whose sum is σ = 2435118. Its totient is φ = 695744.

The previous prime is 1391483. The next prime is 1391519. The reversal of 1391492 is 2941931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 379456 = 1006^2 + 616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173933 + ... + 173940.

It is an arithmetic number, because the mean of its divisors is an integer number (405853).

2^1391492 is an apocalyptic number.

It is an amenable number.

1391492 is a deficient number, since it is larger than the sum of its proper divisors (1043626).

1391492 is a wasteful number, since it uses less digits than its factorization.

1391492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347877 (or 347875 counting only the distinct ones).

The product of its digits is 1944, while the sum is 29.

The square root of 1391492 is about 1179.6151914925. The cubic root of 1391492 is about 111.6418191788.

The spelling of 1391492 in words is "one million, three hundred ninety-one thousand, four hundred ninety-two".