1390572 has 54 divisors (see below), whose sum is σ = 3744468. Its totient is φ = 435024.

The previous prime is 1390547. The next prime is 1390573. The reversal of 1390572 is 2750931.

1390572 is a `hidden beast` number, since 1 + 3 + 90 + 572 = 666.

It is not an unprimeable number, because it can be changed into a prime (1390573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12943 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (69342).

2^1390572 is an apocalyptic number.

1390572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

1390572 is the 963-rd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872234).

1390572 is an abundant number, since it is smaller than the sum of its proper divisors (2353896).

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

1390572 is a wasteful number, since it uses less digits than its factorization.

1390572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1390572 is about 1179.2251693379. The cubic root of 1390572 is about 111.6172093552.

The spelling of 1390572 in words is "one million, three hundred ninety thousand, five hundred seventy-two".