1590940 has 48 divisors (see below), whose sum is σ = 3739680. Its totient is φ = 564480.

The previous prime is 1590937. The next prime is 1590949. The reversal of 1590940 is 490951.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1590899 and 1590908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1590949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7435 + ... + 7645.

It is an arithmetic number, because the mean of its divisors is an integer number (77910).

2^1590940 is an apocalyptic number.

1590940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1590940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869840).

1590940 is an abundant number, since it is smaller than the sum of its proper divisors (2148740).

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

1590940 is a wasteful number, since it uses less digits than its factorization.

1590940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1590940 is about 1261.3247004638. The cubic root of 1590940 is about 116.7395281827.

The spelling of 1590940 in words is "one million, five hundred ninety thousand, nine hundred forty".