402109484 has 36 divisors (see below), whose sum is σ = 820040760. Its totient is φ = 172025280.

The previous prime is 402109471. The next prime is 402109489. The reversal of 402109484 is 484901204.

It is a self number, because there is not a number n which added to its sum of digits gives 402109484.

It is not an unprimeable number, because it can be changed into a prime (402109489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133952 + ... + 136920.

It is an arithmetic number, because the mean of its divisors is an integer number (22778910).

Almost surely, 2^402109484 is an apocalyptic number.

It is an amenable number.

402109484 is an abundant number, since it is smaller than the sum of its proper divisors (417931276).

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

402109484 is a wasteful number, since it uses less digits than its factorization.

402109484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678 (or 3669 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 402109484 is about 20052.6677526956. The cubic root of 402109484 is about 738.0992637294.

It can be divided in two parts, 40210 and 9484, that added together give a palindrome (49694).

The spelling of 402109484 in words is "four hundred two million, one hundred nine thousand, four hundred eighty-four".