1390536 has 96 divisors (see below), whose sum is σ = 4492800. Its totient is φ = 380160.

The previous prime is 1390517. The next prime is 1390541. The reversal of 1390536 is 6350931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15580 + ... + 15668.

It is an arithmetic number, because the mean of its divisors is an integer number (46800).

2^1390536 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 1390536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246400).

1390536 is an abundant number, since it is smaller than the sum of its proper divisors (3102264).

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

1390536 is a wasteful number, since it uses less digits than its factorization.

1390536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 1390536 is about 1179.2099049788. The cubic root of 1390536 is about 111.6162461414.

The spelling of 1390536 in words is "one million, three hundred ninety thousand, five hundred thirty-six".