16630490 has 16 divisors (see below), whose sum is σ = 30111048. Its totient is φ = 6613056.

The previous prime is 16630489. The next prime is 16630513. The reversal of 16630490 is 9403661.

16630490 = 220² + 221² + ... + 392².

It can be written as a sum of positive squares in 4 ways, for example, as 16313521 + 316969 = 4039^2 + 563^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3077 + ... + 6536.

Almost surely, 2^16630490 is an apocalyptic number.

16630490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16630490 is a deficient number, since it is larger than the sum of its proper divisors (13480558).

16630490 is a wasteful number, since it uses less digits than its factorization.

16630490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793.

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

The square root of 16630490 is about 4078.0497789998. The cubic root of 16630490 is about 255.2515267759.

The spelling of 16630490 in words is "sixteen million, six hundred thirty thousand, four hundred ninety".