78232242 has 16 divisors (see below), whose sum is σ = 170688672. Its totient is φ = 23706720.

The previous prime is 78232229. The next prime is 78232247. The reversal of 78232242 is 24223287.

It is a super-2 number, since 2×78232242² = 12240567376693128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78232247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592603 + ... + 592734.

It is an arithmetic number, because the mean of its divisors is an integer number (10668042).

Almost surely, 2^78232242 is an apocalyptic number.

78232242 is an abundant number, since it is smaller than the sum of its proper divisors (92456430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78232242 is a wasteful number, since it uses less digits than its factorization.

78232242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185353.

The product of its digits is 10752, while the sum is 30.

The square root of 78232242 is about 8844.8992080181. The cubic root of 78232242 is about 427.6895038909.

The spelling of 78232242 in words is "seventy-eight million, two hundred thirty-two thousand, two hundred forty-two".