2311490 has 16 divisors (see below), whose sum is σ = 4405752. Its totient is φ = 870144.

The previous prime is 2311487. The next prime is 2311493. The reversal of 2311490 is 941132.

2311490 = T₂₂₆ + T₂₂₇ + ... + T₂₉₃.

It is an interprime number because it is at equal distance from previous prime (2311487) and next prime (2311493).

It can be written as a sum of positive squares in 4 ways, for example, as 1666681 + 644809 = 1291^2 + 803^2 .

It is not an unprimeable number, because it can be changed into a prime (2311493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 6968.

2^2311490 is an apocalyptic number.

2311490 is a deficient number, since it is larger than the sum of its proper divisors (2094262).

2311490 is a wasteful number, since it uses less digits than its factorization.

2311490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2311490 is about 1520.3585103521. The cubic root of 2311490 is about 132.2200568762.

The spelling of 2311490 in words is "two million, three hundred eleven thousand, four hundred ninety".