474540881 has 2 divisors, whose sum is σ = 474540882. Its totient is φ = 474540880.

The previous prime is 474540841. The next prime is 474540883. The reversal of 474540881 is 188045474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463756225 + 10784656 = 21535^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 474540881 - 2⁶ = 474540817 is a prime.

It is a super-2 number, since 2×474540881² = 450378095480512322, which contains 22 as substring.

Together with 474540883, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_25082897 and since 474540881 and 25082897 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (474540883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237270440 + 237270441.

It is an arithmetic number, because the mean of its divisors is an integer number (237270441).

Almost surely, 2^474540881 is an apocalyptic number.

It is an amenable number.

474540881 is a deficient number, since it is larger than the sum of its proper divisors (1).

474540881 is an equidigital number, since it uses as much as digits as its factorization.

474540881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 474540881 is about 21783.9592590511. The cubic root of 474540881 is about 779.9939080173.

The spelling of 474540881 in words is "four hundred seventy-four million, five hundred forty thousand, eight hundred eighty-one".