400098923 has 8 divisors (see below), whose sum is σ = 459578592. Its totient is φ = 341199936.

The previous prime is 400098917. The next prime is 400098929. The reversal of 400098923 is 329890004.

It is an interprime number because it is at equal distance from previous prime (400098917) and next prime (400098929).

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

It is a de Polignac number, because none of the positive numbers 2^k-400098923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400098929) 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, 143690 + ... + 146447.

It is an arithmetic number, because the mean of its divisors is an integer number (57447324).

Almost surely, 2^400098923 is an apocalyptic number.

400098923 is a deficient number, since it is larger than the sum of its proper divisors (59479669).

400098923 is a wasteful number, since it uses less digits than its factorization.

400098923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290341.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 400098923 is about 20002.4729221164. The cubic root of 400098923 is about 736.8670339630.

The spelling of 400098923 in words is "four hundred million, ninety-eight thousand, nine hundred twenty-three".