20274486 has 16 divisors (see below), whose sum is σ = 40605744. Its totient is φ = 6748704.

The previous prime is 20274479. The next prime is 20274487. The reversal of 20274486 is 68447202.

It is a super-2 number, since 2×20274486² = 822109565128392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274487) 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, 3336 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (2537859).

Almost surely, 2^20274486 is an apocalyptic number.

20274486 is an abundant number, since it is smaller than the sum of its proper divisors (20331258).

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

20274486 is a wasteful number, since it uses less digits than its factorization.

20274486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 20274486 is about 4502.7198447161. The cubic root of 20274486 is about 272.6779064385.

The spelling of 20274486 in words is "twenty million, two hundred seventy-four thousand, four hundred eighty-six".