402153544 has 64 divisors (see below), whose sum is σ = 874843200. Its totient is φ = 171714816.

The previous prime is 402153539. The next prime is 402153593. The reversal of 402153544 is 445351204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82602 + ... + 87334.

It is an arithmetic number, because the mean of its divisors is an integer number (13669425).

Almost surely, 2^402153544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402153544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437421600).

402153544 is an abundant number, since it is smaller than the sum of its proper divisors (472689656).

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

402153544 is a wasteful number, since it uses less digits than its factorization.

402153544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4810 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 402153544 is about 20053.7663295452. The cubic root of 402153544 is about 738.1262211188.

The spelling of 402153544 in words is "four hundred two million, one hundred fifty-three thousand, five hundred forty-four".