402841869 has 16 divisors (see below), whose sum is σ = 557260800. Its totient is φ = 258580080.

The previous prime is 402841867. The next prime is 402841883. The reversal of 402841869 is 968148204.

It is not a de Polignac number, because 402841869 - 2¹ = 402841867 is a prime.

It is a super-2 number, since 2×402841869² = 324563142838826322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402841869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402841861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7624 + ... + 29390.

It is an arithmetic number, because the mean of its divisors is an integer number (34828800).

Almost surely, 2^402841869 is an apocalyptic number.

It is an amenable number.

402841869 is a deficient number, since it is larger than the sum of its proper divisors (154418931).

402841869 is a wasteful number, since it uses less digits than its factorization.

402841869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22000.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 402841869 is about 20070.9209803636. The cubic root of 402841869 is about 738.5471060794.

The spelling of 402841869 in words is "four hundred two million, eight hundred forty-one thousand, eight hundred sixty-nine".