80400434 has 8 divisors (see below), whose sum is σ = 120674928. Its totient is φ = 40175460.

The previous prime is 80400431. The next prime is 80400443. The reversal of 80400434 is 43400408.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80400431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8012 + ... + 14999.

It is an arithmetic number, because the mean of its divisors is an integer number (15084366).

Almost surely, 2^80400434 is an apocalyptic number.

80400434 is a deficient number, since it is larger than the sum of its proper divisors (40274494).

80400434 is a wasteful number, since it uses less digits than its factorization.

80400434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24760.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 80400434 is about 8966.6289094620. The cubic root of 80400434 is about 431.6046659079.

The spelling of 80400434 in words is "eighty million, four hundred thousand, four hundred thirty-four".