4000420402 has 8 divisors (see below), whose sum is σ = 6546142512. Its totient is φ = 1818372900.

The previous prime is 4000420397. The next prime is 4000420439. The reversal of 4000420402 is 2040240004.

4000420402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90918624 + ... + 90918667.

It is an arithmetic number, because the mean of its divisors is an integer number (818267814).

Almost surely, 2^4000420402 is an apocalyptic number.

4000420402 is a deficient number, since it is larger than the sum of its proper divisors (2545722110).

4000420402 is a wasteful number, since it uses less digits than its factorization.

4000420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181837304.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4000420402 is about 63248.8766856772. The cubic root of 4000420402 is about 1587.4566622348.

Adding to 4000420402 its reverse (2040240004), we get a palindrome (6040660406).

It can be divided in two parts, 40004 and 20402, that added together give a palindrome (60406).

The spelling of 4000420402 in words is "four billion, four hundred twenty thousand, four hundred two".