402033240 has 384 divisors, whose sum is σ = 1595635200. Its totient is φ = 89752320.

The previous prime is 402033239. The next prime is 402033251. The reversal of 402033240 is 42330204.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3757267 + ... + 3757373.

It is an arithmetic number, because the mean of its divisors is an integer number (4155300).

Almost surely, 2^402033240 is an apocalyptic number.

402033240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402033240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797817600).

402033240 is an abundant number, since it is smaller than the sum of its proper divisors (1193601960).

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

402033240 is a wasteful number, since it uses less digits than its factorization.

402033240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 402033240 is about 20050.7665688871. The cubic root of 402033240 is about 738.0526104341.

Adding to 402033240 its reverse (42330204), we get a palindrome (444363444).

The spelling of 402033240 in words is "four hundred two million, thirty-three thousand, two hundred forty".