2231490 has 16 divisors (see below), whose sum is σ = 5355648. Its totient is φ = 595056.

The previous prime is 2231479. The next prime is 2231491. The reversal of 2231490 is 941322.

It is a super-3 number, since 3×2231490³ = 33335432156330847000, which contains 333 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2231491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37162 + ... + 37221.

It is an arithmetic number, because the mean of its divisors is an integer number (334728).

2^2231490 is an apocalyptic number.

2231490 is an abundant number, since it is smaller than the sum of its proper divisors (3124158).

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

2231490 is a wasteful number, since it uses less digits than its factorization.

2231490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74393.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2231490 is about 1493.8172579000. The cubic root of 2231490 is about 130.6767470473.

The spelling of 2231490 in words is "two million, two hundred thirty-one thousand, four hundred ninety".