400923455 has 8 divisors (see below), whose sum is σ = 481896672. Its totient is φ = 320213088.

The previous prime is 400923451. The next prime is 400923469. The reversal of 400923455 is 554329004.

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 400923455 - 2² = 400923451 is a prime.

It is a super-3 number, since 3×400923455³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400923451) 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, 62339 + ... + 68468.

It is an arithmetic number, because the mean of its divisors is an integer number (60237084).

Almost surely, 2^400923455 is an apocalyptic number.

400923455 is a deficient number, since it is larger than the sum of its proper divisors (80973217).

400923455 is a wasteful number, since it uses less digits than its factorization.

400923455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131425.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 400923455 is about 20023.0730658408. The cubic root of 400923455 is about 737.3728701675.

The spelling of 400923455 in words is "four hundred million, nine hundred twenty-three thousand, four hundred fifty-five".