403042566 has 16 divisors (see below), whose sum is σ = 814396464. Its totient is φ = 132962304.

The previous prime is 403042561. The next prime is 403042567. The reversal of 403042566 is 665240304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403042561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345675 + ... + 346838.

It is an arithmetic number, because the mean of its divisors is an integer number (50899779).

Almost surely, 2^403042566 is an apocalyptic number.

403042566 is an abundant number, since it is smaller than the sum of its proper divisors (411353898).

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

403042566 is a wasteful number, since it uses less digits than its factorization.

403042566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692615.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 403042566 is about 20075.9200536364. The cubic root of 403042566 is about 738.6697344948.

The spelling of 403042566 in words is "four hundred three million, forty-two thousand, five hundred sixty-six".