401424605 has 8 divisors (see below), whose sum is σ = 481977432. Its totient is φ = 320961088.

The previous prime is 401424599. The next prime is 401424619. The reversal of 401424605 is 506424104.

It can be written as a sum of positive squares in 4 ways, for example, as 8631844 + 392792761 = 2938^2 + 19819^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 401424605 - 2²⁸ = 132989149 is a prime.

It is a super-2 number, since 2×401424605² = 322283426998812050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12002 + ... + 30771.

It is an arithmetic number, because the mean of its divisors is an integer number (60247179).

Almost surely, 2^401424605 is an apocalyptic number.

It is an amenable number.

401424605 is a deficient number, since it is larger than the sum of its proper divisors (80552827).

401424605 is a wasteful number, since it uses less digits than its factorization.

401424605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44655.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 401424605 is about 20035.5834704158. The cubic root of 401424605 is about 737.6799782907.

Adding to 401424605 its reverse (506424104), we get a palindrome (907848709).

The spelling of 401424605 in words is "four hundred one million, four hundred twenty-four thousand, six hundred five".