402032052 has 24 divisors (see below), whose sum is σ = 1042305600. Its totient is φ = 134010648.

The previous prime is 402032051. The next prime is 402032119. The reversal of 402032052 is 250230204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402032051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1861152 + ... + 1861367.

It is an arithmetic number, because the mean of its divisors is an integer number (43429400).

Almost surely, 2^402032052 is an apocalyptic number.

It is an amenable number.

402032052 is an abundant number, since it is smaller than the sum of its proper divisors (640273548).

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

402032052 is a wasteful number, since it uses less digits than its factorization.

402032052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722532 (or 3722524 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 402032052 is about 20050.7369440627. The cubic root of 402032052 is about 738.0518834566.

Adding to 402032052 its reverse (250230204), we get a palindrome (652262256).

The spelling of 402032052 in words is "four hundred two million, thirty-two thousand, fifty-two".