2923490 has 32 divisors (see below), whose sum is σ = 5773680. Its totient is φ = 1060864.

The previous prime is 2923477. The next prime is 2923493. The reversal of 2923490 is 943292.

2923490 = T₁₆₄ + T₁₆₅ + ... + T₂₇₉.

It can be written as a sum of positive squares in 8 ways, for example, as 1885129 + 1038361 = 1373^2 + 1019^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2923493) 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, 4634 + ... + 5226.

2^2923490 is an apocalyptic number.

2923490 is a deficient number, since it is larger than the sum of its proper divisors (2850190).

2923490 is a wasteful number, since it uses less digits than its factorization.

2923490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2923490 is about 1709.8216281238. The cubic root of 2923490 is about 142.9883114315.

The spelling of 2923490 in words is "two million, nine hundred twenty-three thousand, four hundred ninety".