403649874 has 12 divisors (see below), whose sum is σ = 874574766. Its totient is φ = 134549952.

The previous prime is 403649863. The next prime is 403649881. The reversal of 403649874 is 478946304.

It can be written as a sum of positive squares in only one way, i.e., 304746849 + 98903025 = 17457^2 + 9945^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11212479 + ... + 11212514.

Almost surely, 2^403649874 is an apocalyptic number.

403649874 is an abundant number, since it is smaller than the sum of its proper divisors (470924892).

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

403649874 is a wasteful number, since it uses less digits than its factorization.

403649874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22425001 (or 22424998 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 403649874 is about 20091.0396445779. The cubic root of 403649874 is about 739.0405596030.

The spelling of 403649874 in words is "four hundred three million, six hundred forty-nine thousand, eight hundred seventy-four".