402044084 has 72 divisors (see below), whose sum is σ = 831817728. Its totient is φ = 168814080.

The previous prime is 402044077. The next prime is 402044087. The reversal of 402044084 is 480440204.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402044087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465437 + ... + 466299.

It is an arithmetic number, because the mean of its divisors is an integer number (11553024).

Almost surely, 2^402044084 is an apocalyptic number.

It is an amenable number.

402044084 is an abundant number, since it is smaller than the sum of its proper divisors (429773644).

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

402044084 is a wasteful number, since it uses less digits than its factorization.

402044084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 402044084 is about 20051.0369806651. The cubic root of 402044084 is about 738.0592461794.

Adding to 402044084 its reverse (480440204), we get a palindrome (882484288).

The spelling of 402044084 in words is "four hundred two million, forty-four thousand, eighty-four".