78053458 has 8 divisors (see below), whose sum is σ = 133805952. Its totient is φ = 33451476.

The previous prime is 78053431. The next prime is 78053489. The reversal of 78053458 is 85435087.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78053458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787610 + ... + 2787637.

It is an arithmetic number, because the mean of its divisors is an integer number (16725744).

Almost surely, 2^78053458 is an apocalyptic number.

78053458 is a deficient number, since it is larger than the sum of its proper divisors (55752494).

78053458 is a wasteful number, since it uses less digits than its factorization.

78053458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575256.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 78053458 is about 8834.7868112366. The cubic root of 78053458 is about 427.3634560447.

The spelling of 78053458 in words is "seventy-eight million, fifty-three thousand, four hundred fifty-eight".