402645060 has 96 divisors (see below), whose sum is σ = 1265752320. Its totient is φ = 106251264.

The previous prime is 402645037. The next prime is 402645071. The reversal of 402645060 is 60546204.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48537 + ... + 56223.

It is an arithmetic number, because the mean of its divisors is an integer number (13184920).

Almost surely, 2^402645060 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 402645060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632876160).

402645060 is an abundant number, since it is smaller than the sum of its proper divisors (863107260).

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

402645060 is a wasteful number, since it uses less digits than its factorization.

402645060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802 (or 7794 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 402645060 is about 20066.0175421034. The cubic root of 402645060 is about 738.4268137217.

The spelling of 402645060 in words is "four hundred two million, six hundred forty-five thousand, sixty".