2664490 has 8 divisors (see below), whose sum is σ = 4796100. Its totient is φ = 1065792.

The previous prime is 2664479. The next prime is 2664511. The reversal of 2664490 is 944662.

It can be written as a sum of positive squares in 2 ways, for example, as 2595321 + 69169 = 1611^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133215 + ... + 133234.

2^2664490 is an apocalyptic number.

2664490 is a deficient number, since it is larger than the sum of its proper divisors (2131610).

2664490 is a wasteful number, since it uses less digits than its factorization.

2664490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266456.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2664490 is about 1632.3265604652. The cubic root of 2664490 is about 138.6345141903.

It can be divided in two parts, 26 and 64490, that added together give a square (64516 = 254²).

The spelling of 2664490 in words is "two million, six hundred sixty-four thousand, four hundred ninety".