402535020 has 96 divisors (see below), whose sum is σ = 1150571520. Its totient is φ = 105131520.

The previous prime is 402534991. The next prime is 402535069. The reversal of 402535020 is 20535204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 772360 + ... + 772880.

It is an arithmetic number, because the mean of its divisors is an integer number (11985120).

Almost surely, 2^402535020 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 402535020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575285760).

402535020 is an abundant number, since it is smaller than the sum of its proper divisors (748036500).

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

402535020 is a wasteful number, since it uses less digits than its factorization.

402535020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 402535020 is about 20063.2754055762. The cubic root of 402535020 is about 738.3595386797.

The spelling of 402535020 in words is "four hundred two million, five hundred thirty-five thousand, twenty".