12042590 has 32 divisors (see below), whose sum is σ = 25064640. Its totient is φ = 4080384.

The previous prime is 12042587. The next prime is 12042619. The reversal of 12042590 is 9524021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5264 + ... + 7196.

It is an arithmetic number, because the mean of its divisors is an integer number (783270).

Almost surely, 2^12042590 is an apocalyptic number.

12042590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12042590 is an abundant number, since it is smaller than the sum of its proper divisors (13022050).

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

12042590 is a wasteful number, since it uses less digits than its factorization.

12042590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12042590 is about 3470.2435073061. The cubic root of 12042590 is about 229.2133808167.

Subtracting from 12042590 its reverse (9524021), we obtain a square (2518569 = 1587²).

The spelling of 12042590 in words is "twelve million, forty-two thousand, five hundred ninety".