20274799 has 16 divisors (see below), whose sum is σ = 22161600. Its totient is φ = 18489856.

The previous prime is 20274791. The next prime is 20274809. The reversal of 20274799 is 99747202.

It is a cyclic number.

It is not a de Polignac number, because 20274799 - 2³ = 20274791 is a prime.

It is a super-2 number, since 2×20274799² = 822134948980802, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75237 + ... + 75505.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^20274799 is an apocalyptic number.

20274799 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20274799 is a deficient number, since it is larger than the sum of its proper divisors (1886801).

20274799 is a wasteful number, since it uses less digits than its factorization.

20274799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 20274799 is about 4502.7546013524. The cubic root of 20274799 is about 272.6793096429.

The spelling of 20274799 in words is "twenty million, two hundred seventy-four thousand, seven hundred ninety-nine".