474990781 has 8 divisors (see below), whose sum is σ = 493432128. Its totient is φ = 456876000.

The previous prime is 474990767. The next prime is 474990787. The reversal of 474990781 is 187099474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 474990781 - 2⁵ = 474990749 is a prime.

It is a super-2 number, since 2×474990781² = 451232484069979922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474990787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78675 + ... + 84496.

It is an arithmetic number, because the mean of its divisors is an integer number (61679016).

Almost surely, 2^474990781 is an apocalyptic number.

474990781 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

474990781 is a deficient number, since it is larger than the sum of its proper divisors (18441347).

474990781 is a wasteful number, since it uses less digits than its factorization.

474990781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163283.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 474990781 is about 21794.2832183121. The cubic root of 474990781 is about 780.2403275444.

The spelling of 474990781 in words is "four hundred seventy-four million, nine hundred ninety thousand, seven hundred eighty-one".