401205634 has 8 divisors (see below), whose sum is σ = 633482640. Its totient is φ = 190044756.

The previous prime is 401205619. The next prime is 401205667. The reversal of 401205634 is 436502104.

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

It is a junction number, because it is equal to n+sod(n) for n = 401205599 and 401205608.

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, 5278984 + ... + 5279059.

It is an arithmetic number, because the mean of its divisors is an integer number (79185330).

Almost surely, 2^401205634 is an apocalyptic number.

401205634 is a deficient number, since it is larger than the sum of its proper divisors (232277006).

401205634 is a wasteful number, since it uses less digits than its factorization.

401205634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10558064.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 401205634 is about 20030.1181723923. The cubic root of 401205634 is about 737.5458228351.

Adding to 401205634 its reverse (436502104), we get a palindrome (837707738).

It can be divided in two parts, 40120 and 5634, that added together give a palindrome (45754).

The spelling of 401205634 in words is "four hundred one million, two hundred five thousand, six hundred thirty-four".