80400023 has 12 divisors (see below), whose sum is σ = 88616304. Its totient is φ = 72890400.

The previous prime is 80400011. The next prime is 80400029. The reversal of 80400023 is 32000408.

It is not a de Polignac number, because 80400023 - 2⁴ = 80400007 is a prime.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80399974 and 80400010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80400029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60203 + ... + 61523.

It is an arithmetic number, because the mean of its divisors is an integer number (7384692).

Almost surely, 2^80400023 is an apocalyptic number.

80400023 is a deficient number, since it is larger than the sum of its proper divisors (8216281).

80400023 is a wasteful number, since it uses less digits than its factorization.

80400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 80400023 is about 8966.6059911206. The cubic root of 80400023 is about 431.6039304648.

The spelling of 80400023 in words is "eighty million, four hundred thousand, twenty-three".