402030024 has 32 divisors (see below), whose sum is σ = 1096446240. Its totient is φ = 121827200.

The previous prime is 402030023. The next prime is 402030043. The reversal of 402030024 is 420030204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402029985 and 402030012.

It is not an unprimeable number, because it can be changed into a prime (402030023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761157 + ... + 761684.

It is an arithmetic number, because the mean of its divisors is an integer number (34263945).

Almost surely, 2^402030024 is an apocalyptic number.

402030024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402030024 is an abundant number, since it is smaller than the sum of its proper divisors (694416216).

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

402030024 is a wasteful number, since it uses less digits than its factorization.

402030024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522861 (or 1522857 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 402030024 is about 20050.6863722916. The cubic root of 402030024 is about 738.0506424513.

Adding to 402030024 its reverse (420030204), we get a palindrome (822060228).

The spelling of 402030024 in words is "four hundred two million, thirty thousand, twenty-four".