401424123 has 8 divisors (see below), whose sum is σ = 535401808. Its totient is φ = 267531264.

The previous prime is 401424073. The next prime is 401424139. The reversal of 401424123 is 321424104.

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

It is not a de Polignac number, because 401424123 - 2⁹ = 401423611 is a prime.

It is a super-2 number, since 2×401424123² = 322282653052638258, 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 401424123.

It is not an unprimeable number, because it can be changed into a prime (401424143) 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, 9190 + ... + 29787.

It is an arithmetic number, because the mean of its divisors is an integer number (66925226).

Almost surely, 2^401424123 is an apocalyptic number.

401424123 is a deficient number, since it is larger than the sum of its proper divisors (133977685).

401424123 is a wasteful number, since it uses less digits than its factorization.

401424123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42413.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401424123 is about 20035.5714418132. The cubic root of 401424123 is about 737.6796830406.

Adding to 401424123 its reverse (321424104), we get a palindrome (722848227).

The spelling of 401424123 in words is "four hundred one million, four hundred twenty-four thousand, one hundred twenty-three".