402030100 has 36 divisors (see below), whose sum is σ = 874187104. Its totient is φ = 160483680.

The previous prime is 402030067. The next prime is 402030107. The reversal of 402030100 is 1030204.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402030107) 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, 48457 + ... + 56143.

Almost surely, 2^402030100 is an apocalyptic number.

It is an amenable number.

402030100 is an abundant number, since it is smaller than the sum of its proper divisors (472157004).

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

402030100 is a wasteful number, since it uses less digits than its factorization.

402030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224 (or 8217 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 402030100 is about 20050.6882674885. The cubic root of 402030100 is about 738.0506889585.

Adding to 402030100 its reverse (1030204), we get a palindrome (403060304).

The spelling of 402030100 in words is "four hundred two million, thirty thousand, one hundred".