2142490 has 32 divisors (see below), whose sum is σ = 4460544. Its totient is φ = 725760.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142490 is 942412.

2142490 = 263² + 264² + ... + 290².

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2142499) 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, 8770 + ... + 9010.

It is an arithmetic number, because the mean of its divisors is an integer number (139392).

2^2142490 is an apocalyptic number.

2142490 is an abundant number, since it is smaller than the sum of its proper divisors (2318054).

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

2142490 is a wasteful number, since it uses less digits than its factorization.

2142490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2142490 is about 1463.7247008915. The cubic root of 2142490 is about 128.9158355712.

It can be divided in two parts, 214 and 2490, that added together give a square (2704 = 52²).

The spelling of 2142490 in words is "two million, one hundred forty-two thousand, four hundred ninety".