401723253 has 8 divisors (see below), whose sum is σ = 595145600. Its totient is φ = 267815484.

The previous prime is 401723239. The next prime is 401723263. The reversal of 401723253 is 352327104.

401723253 is a `hidden beast` number, since 401 + 7 + 2 + 3 + 253 = 666.

It is not a de Polignac number, because 401723253 - 2¹⁰ = 401722229 is a prime.

It is a super-2 number, since 2×401723253² = 322763144001804018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14878639 = 401723253 / (4 + 0 + 1 + 7 + 2 + 3 + 2 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401723263) 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, 7439293 + ... + 7439346.

It is an arithmetic number, because the mean of its divisors is an integer number (74393200).

Almost surely, 2^401723253 is an apocalyptic number.

It is an amenable number.

401723253 is a deficient number, since it is larger than the sum of its proper divisors (193422347).

401723253 is a wasteful number, since it uses less digits than its factorization.

401723253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878648 (or 14878642 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 401723253 is about 20043.0350246663. The cubic root of 401723253 is about 737.8628702842.

The spelling of 401723253 in words is "four hundred one million, seven hundred twenty-three thousand, two hundred fifty-three".