401304634 has 8 divisors (see below), whose sum is σ = 602131860. Its totient is φ = 200594016.

The previous prime is 401304623. The next prime is 401304637. The reversal of 401304634 is 436403104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 389075625 + 12229009 = 19725^2 + 3497^2 .

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

It is a super-2 number, since 2×401304634² = 322090818539747912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401304599 and 401304608.

It is not an unprimeable number, because it can be changed into a prime (401304637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19969 + ... + 34660.

Almost surely, 2^401304634 is an apocalyptic number.

401304634 is a deficient number, since it is larger than the sum of its proper divisors (200827226).

401304634 is a wasteful number, since it uses less digits than its factorization.

401304634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58304.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 401304634 is about 20032.5892984407. The cubic root of 401304634 is about 737.6064825279.

Adding to 401304634 its reverse (436403104), we get a palindrome (837707738).

The spelling of 401304634 in words is "four hundred one million, three hundred four thousand, six hundred thirty-four".