78294830 has 32 divisors (see below), whose sum is σ = 147758688. Its totient is φ = 29836800.

The previous prime is 78294823. The next prime is 78294841. The reversal of 78294830 is 3849287.

It is a super-2 number, since 2×78294830² = 12260160809457800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15410 + ... + 19850.

It is an arithmetic number, because the mean of its divisors is an integer number (4617459).

Almost surely, 2^78294830 is an apocalyptic number.

78294830 is a deficient number, since it is larger than the sum of its proper divisors (69463858).

78294830 is a wasteful number, since it uses less digits than its factorization.

78294830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 78294830 is about 8848.4365850697. The cubic root of 78294830 is about 427.8035280439.

The spelling of 78294830 in words is "seventy-eight million, two hundred ninety-four thousand, eight hundred thirty".