401404004402 has 8 divisors (see below), whose sum is σ = 605799908976. Its totient is φ = 199470701412.

The previous prime is 401404004399. The next prime is 401404004423. The reversal of 401404004402 is 204400404104.

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

It is a super-2 number, since 2×401404004402² (a number of 24 digits) contains 22 as substring.

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, 615649988 + ... + 615650639.

It is an arithmetic number, because the mean of its divisors is an integer number (75724988622).

Almost surely, 2^401404004402 is an apocalyptic number.

401404004402 is a deficient number, since it is larger than the sum of its proper divisors (204395904574).

401404004402 is a wasteful number, since it uses less digits than its factorization.

401404004402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231300792.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 401404004402 its reverse (204400404104), we get a palindrome (605804408506).

The spelling of 401404004402 in words is "four hundred one billion, four hundred four million, four thousand, four hundred two".