1390592 has 48 divisors (see below), whose sum is σ = 3210480. Its totient is φ = 589824.

The previous prime is 1390573. The next prime is 1390601. The reversal of 1390592 is 2950931.

It is a super-2 number, since 2×1390592² = 3867492220928, which contains 22 as substring.

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, 14288 + ... + 14384.

It is an arithmetic number, because the mean of its divisors is an integer number (66885).

2^1390592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605240).

1390592 is an abundant number, since it is smaller than the sum of its proper divisors (1819888).

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

1390592 is an frugal number, since it uses more digits than its factorization.

1390592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 1390592 is about 1179.2336494520. The cubic root of 1390592 is about 111.6177444667.

The spelling of 1390592 in words is "one million, three hundred ninety thousand, five hundred ninety-two".