2040420402 has 16 divisors (see below), whose sum is σ = 4534267680. Its totient is φ = 680140116.

The previous prime is 2040420401. The next prime is 2040420407. The reversal of 2040420402 is 2040240402.

2040420402 is a `hidden beast` number, since 204 + 0 + 420 + 40 + 2 = 666.

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 (2040420401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18892728 + ... + 18892835.

It is an arithmetic number, because the mean of its divisors is an integer number (283391730).

Almost surely, 2^2040420402 is an apocalyptic number.

2040420402 is an abundant number, since it is smaller than the sum of its proper divisors (2493847278).

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

2040420402 is a wasteful number, since it uses less digits than its factorization.

2040420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37785574 (or 37785568 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2040420402 is about 45171.0128511637. The cubic root of 2040420402 is about 1268.3522562045.

Adding to 2040420402 its reverse (2040240402), we get a palindrome (4080660804).

The spelling of 2040420402 in words is "two billion, forty million, four hundred twenty thousand, four hundred two".