20277268 has 24 divisors (see below), whose sum is σ = 39118464. Its totient is φ = 9120000.

The previous prime is 20277253. The next prime is 20277269. The reversal of 20277268 is 86277202.

It is a super-2 number, since 2×20277268² = 822335195087648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20277269) 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, 1893 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (1629936).

Almost surely, 2^20277268 is an apocalyptic number.

It is an amenable number.

20277268 is a deficient number, since it is larger than the sum of its proper divisors (18841196).

20277268 is a wasteful number, since it uses less digits than its factorization.

20277268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 20277268 is about 4503.0287585135. The cubic root of 20277268 is about 272.6903778643.

The spelling of 20277268 in words is "twenty million, two hundred seventy-seven thousand, two hundred sixty-eight".