402204301020 has 72 divisors (see below), whose sum is σ = 1220203333440. Its totient is φ = 107238337920.

The previous prime is 402204301001. The next prime is 402204301039. The reversal of 402204301020 is 20103402204.

402204301020 is a `hidden beast` number, since 4 + 0 + 220 + 430 + 10 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (402204301001) and next prime (402204301039).

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

It is a junction number, because it is equal to n+sod(n) for n = 402204300984 and 402204301002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1055821 + ... + 1385339.

It is an arithmetic number, because the mean of its divisors is an integer number (16947268520).

Almost surely, 2^402204301020 is an apocalyptic number.

It is an amenable number.

402204301020 is an abundant number, since it is smaller than the sum of its proper divisors (817999032420).

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

402204301020 is a wasteful number, since it uses less digits than its factorization.

402204301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336315 (or 336310 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 402204301020 its reverse (20103402204), we get a palindrome (422307703224).

The spelling of 402204301020 in words is "four hundred two billion, two hundred four million, three hundred one thousand, twenty".