400151423 has 24 divisors (see below), whose sum is σ = 488527872. Its totient is φ = 321001344.

The previous prime is 400151417. The next prime is 400151429. The reversal of 400151423 is 324151004.

It is an interprime number because it is at equal distance from previous prime (400151417) and next prime (400151429).

It is not a de Polignac number, because 400151423 - 2¹⁴ = 400135039 is a prime.

It is a super-2 number, since 2×400151423² = 320242322657849858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400151395 and 400151404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400151429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450686 + ... + 451572.

It is an arithmetic number, because the mean of its divisors is an integer number (20355328).

Almost surely, 2^400151423 is an apocalyptic number.

400151423 is a deficient number, since it is larger than the sum of its proper divisors (88376449).

400151423 is a wasteful number, since it uses less digits than its factorization.

400151423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 400151423 is about 20003.7852168033. The cubic root of 400151423 is about 736.8992625154.

The spelling of 400151423 in words is "four hundred million, one hundred fifty-one thousand, four hundred twenty-three".