40098023 has 6 divisors (see below), whose sum is σ = 46644696. Its totient is φ = 34369692.

The previous prime is 40098017. The next prime is 40098029. The reversal of 40098023 is 32089004.

It is an interprime number because it is at equal distance from previous prime (40098017) and next prime (40098029).

It is not a de Polignac number, because 40098023 - 2⁴ = 40098007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40097983 and 40098001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40098029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409115 + ... + 409212.

It is an arithmetic number, because the mean of its divisors is an integer number (7774116).

Almost surely, 2^40098023 is an apocalyptic number.

40098023 is a deficient number, since it is larger than the sum of its proper divisors (6546673).

40098023 is an equidigital number, since it uses as much as digits as its factorization.

40098023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818341 (or 818334 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40098023 is about 6332.2999771015. The cubic root of 40098023 is about 342.2743230670.

The spelling of 40098023 in words is "forty million, ninety-eight thousand, twenty-three".