78251234 has 8 divisors (see below), whose sum is σ = 123554640. Its totient is φ = 37066356.

The previous prime is 78251233. The next prime is 78251237. The reversal of 78251234 is 43215287.

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

It is a super-2 number, since 2×78251234² = 12246511245045512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78251234.

It is not an unprimeable number, because it can be changed into a prime (78251231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029584 + ... + 1029659.

It is an arithmetic number, because the mean of its divisors is an integer number (15444330).

Almost surely, 2^78251234 is an apocalyptic number.

78251234 is a deficient number, since it is larger than the sum of its proper divisors (45303406).

78251234 is a wasteful number, since it uses less digits than its factorization.

78251234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059264.

The product of its digits is 13440, while the sum is 32.

The square root of 78251234 is about 8845.9727560060. The cubic root of 78251234 is about 427.7241103466.

The spelling of 78251234 in words is "seventy-eight million, two hundred fifty-one thousand, two hundred thirty-four".