401253023 has 8 divisors (see below), whose sum is σ = 427232880. Its totient is φ = 375537280.

The previous prime is 401253007. The next prime is 401253121. The reversal of 401253023 is 320352104.

It is a happy number.

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 401253023 - 2⁴ = 401253007 is a prime.

It is a super-2 number, since 2×401253023² = 322007976933277058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401252986 and 401253004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401213023) 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, 62888 + ... + 68973.

It is an arithmetic number, because the mean of its divisors is an integer number (53404110).

Almost surely, 2^401253023 is an apocalyptic number.

401253023 is a deficient number, since it is larger than the sum of its proper divisors (25979857).

401253023 is a wasteful number, since it uses less digits than its factorization.

401253023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132057.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 401253023 is about 20031.3010810581. The cubic root of 401253023 is about 737.5748604657.

The spelling of 401253023 in words is "four hundred one million, two hundred fifty-three thousand, twenty-three".