401203623 has 8 divisors (see below), whose sum is σ = 538787200. Its totient is φ = 265544568.

The previous prime is 401203597. The next prime is 401203709. The reversal of 401203623 is 326302104.

It is a happy number.

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

It is not a de Polignac number, because 401203623 - 2¹⁴ = 401187239 is a prime.

It is a super-2 number, since 2×401203623² = 321928694216652258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401203623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401203123) 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, 480643 + ... + 481476.

It is an arithmetic number, because the mean of its divisors is an integer number (67348400).

Almost surely, 2^401203623 is an apocalyptic number.

401203623 is a deficient number, since it is larger than the sum of its proper divisors (137583577).

401203623 is a wasteful number, since it uses less digits than its factorization.

401203623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962261.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 401203623 is about 20030.0679729251. The cubic root of 401203623 is about 737.5445905434.

Adding to 401203623 its reverse (326302104), we get a palindrome (727505727).

The spelling of 401203623 in words is "four hundred one million, two hundred three thousand, six hundred twenty-three".