402031152 has 60 divisors (see below), whose sum is σ = 1129302720. Its totient is φ = 133513344.

The previous prime is 402031151. The next prime is 402031153. The reversal of 402031152 is 251130204.

It is an interprime number because it is at equal distance from previous prime (402031151) and next prime (402031153).

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

It is not an unprimeable number, because it can be changed into a prime (402031151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34849 + ... + 44927.

It is an arithmetic number, because the mean of its divisors is an integer number (18821712).

Almost surely, 2^402031152 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 402031152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564651360).

402031152 is an abundant number, since it is smaller than the sum of its proper divisors (727271568).

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

402031152 is a wasteful number, since it uses less digits than its factorization.

402031152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370 (or 10361 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 402031152 is about 20050.7145009847. The cubic root of 402031152 is about 738.0513327151.

Adding to 402031152 its reverse (251130204), we get a palindrome (653161356).

The spelling of 402031152 in words is "four hundred two million, thirty-one thousand, one hundred fifty-two".