20373490 has 8 divisors (see below), whose sum is σ = 36672300. Its totient is φ = 8149392.

The previous prime is 20373487. The next prime is 20373511. The reversal of 20373490 is 9437302.

It can be written as a sum of positive squares in 2 ways, for example, as 18983449 + 1390041 = 4357^2 + 1179^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018665 + ... + 1018684.

Almost surely, 2^20373490 is an apocalyptic number.

20373490 is a deficient number, since it is larger than the sum of its proper divisors (16298810).

20373490 is a wasteful number, since it uses less digits than its factorization.

20373490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037356.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20373490 is about 4513.7002558876. The cubic root of 20373490 is about 273.1210311917.

The spelling of 20373490 in words is "twenty million, three hundred seventy-three thousand, four hundred ninety".