403555042 has 16 divisors (see below), whose sum is σ = 661385664. Its totient is φ = 183150000.

The previous prime is 403555007. The next prime is 403555067. The reversal of 403555042 is 240555304.

It is a self number, because there is not a number n which added to its sum of digits gives 403555042.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667 + ... + 28417.

It is an arithmetic number, because the mean of its divisors is an integer number (41336604).

Almost surely, 2^403555042 is an apocalyptic number.

403555042 is a deficient number, since it is larger than the sum of its proper divisors (257830622).

403555042 is a wasteful number, since it uses less digits than its factorization.

403555042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28425.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 403555042 is about 20088.6794488836. The cubic root of 403555042 is about 738.9826792566.

The spelling of 403555042 in words is "four hundred three million, five hundred fifty-five thousand, forty-two".