20492274 has 16 divisors (see below), whose sum is σ = 44710560. Its totient is φ = 6209760.

The previous prime is 20492273. The next prime is 20492321. The reversal of 20492274 is 47229402.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20492273) 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, 155179 + ... + 155310.

It is an arithmetic number, because the mean of its divisors is an integer number (2794410).

Almost surely, 2^20492274 is an apocalyptic number.

20492274 is an abundant number, since it is smaller than the sum of its proper divisors (24218286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20492274 is a wasteful number, since it uses less digits than its factorization.

20492274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310505.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20492274 is about 4526.8392946956. The cubic root of 20492274 is about 273.6507974404.

It can be divided in two parts, 20 and 492274, that added together give a palindrome (492294).

The spelling of 20492274 in words is "twenty million, four hundred ninety-two thousand, two hundred seventy-four".