402741018 has 16 divisors (see below), whose sum is σ = 894980160. Its totient is φ = 134246988.

The previous prime is 402740977. The next prime is 402741019. The reversal of 402741018 is 810147204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 402740982 and 402741000.

It is not an unprimeable number, because it can be changed into a prime (402741019) 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, 3729030 + ... + 3729137.

It is an arithmetic number, because the mean of its divisors is an integer number (55936260).

Almost surely, 2^402741018 is an apocalyptic number.

402741018 is an abundant number, since it is smaller than the sum of its proper divisors (492239142).

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

402741018 is a wasteful number, since it uses less digits than its factorization.

402741018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7458178 (or 7458172 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 402741018 is about 20068.4084570750. The cubic root of 402741018 is about 738.4854694618.

The spelling of 402741018 in words is "four hundred two million, seven hundred forty-one thousand, eighteen".