78030542 has 8 divisors (see below), whose sum is σ = 117900576. Its totient is φ = 38730352.

The previous prime is 78030539. The next prime is 78030553. The reversal of 78030542 is 24503087.

It is a happy number.

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

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, 142118 + ... + 142665.

It is an arithmetic number, because the mean of its divisors is an integer number (14737572).

Almost surely, 2^78030542 is an apocalyptic number.

78030542 is a deficient number, since it is larger than the sum of its proper divisors (39870034).

78030542 is a wasteful number, since it uses less digits than its factorization.

78030542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284922.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 78030542 is about 8833.4897973564. The cubic root of 78030542 is about 427.3216282180.

The spelling of 78030542 in words is "seventy-eight million, thirty thousand, five hundred forty-two".