78324542 has 8 divisors (see below), whose sum is σ = 124397856. Its totient is φ = 36858592.

The previous prime is 78324509. The next prime is 78324551. The reversal of 78324542 is 24542387.

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

It is a super-2 number, since 2×78324542² = 12269467759019528, which contains 22 as substring.

It is a congruent number.

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, 1151798 + ... + 1151865.

It is an arithmetic number, because the mean of its divisors is an integer number (15549732).

Almost surely, 2^78324542 is an apocalyptic number.

78324542 is a deficient number, since it is larger than the sum of its proper divisors (46073314).

78324542 is a wasteful number, since it uses less digits than its factorization.

78324542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303682.

The product of its digits is 53760, while the sum is 35.

The square root of 78324542 is about 8850.1153664797. The cubic root of 78324542 is about 427.8576367290.

The spelling of 78324542 in words is "seventy-eight million, three hundred twenty-four thousand, five hundred forty-two".