78258350 has 12 divisors (see below), whose sum is σ = 145560624. Its totient is φ = 31303320.

The previous prime is 78258331. The next prime is 78258379. The reversal of 78258350 is 5385287.

It is a super-2 number, since 2×78258350² = 12248738689445000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 782534 + ... + 782633.

It is an arithmetic number, because the mean of its divisors is an integer number (12130052).

Almost surely, 2^78258350 is an apocalyptic number.

78258350 is a deficient number, since it is larger than the sum of its proper divisors (67302274).

78258350 is a wasteful number, since it uses less digits than its factorization.

78258350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565179 (or 1565174 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 78258350 is about 8846.3749637917. The cubic root of 78258350 is about 427.7370753925.

The spelling of 78258350 in words is "seventy-eight million, two hundred fifty-eight thousand, three hundred fifty".