79236442 has 4 divisors (see below), whose sum is σ = 118854666. Its totient is φ = 39618220.

The previous prime is 79236413. The next prime is 79236461. The reversal of 79236442 is 24463297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77774761 + 1461681 = 8819^2 + 1209^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19809109 + ... + 19809112.

Almost surely, 2^79236442 is an apocalyptic number.

79236442 is a deficient number, since it is larger than the sum of its proper divisors (39618224).

79236442 is a wasteful number, since it uses less digits than its factorization.

79236442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39618223.

The product of its digits is 72576, while the sum is 37.

The square root of 79236442 is about 8901.4853816652. The cubic root of 79236442 is about 429.5116901396.

It can be divided in two parts, 7923 and 6442, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 79236442 in words is "seventy-nine million, two hundred thirty-six thousand, four hundred forty-two".