78275042 has 8 divisors (see below), whose sum is σ = 117482832. Its totient is φ = 39114100.

The previous prime is 78275039. The next prime is 78275051. The reversal of 78275042 is 24057287.

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

It is a super-2 number, since 2×78275042² = 12253964400203528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78274993 and 78275011.

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, 7184 + ... + 14427.

It is an arithmetic number, because the mean of its divisors is an integer number (14685354).

Almost surely, 2^78275042 is an apocalyptic number.

78275042 is a deficient number, since it is larger than the sum of its proper divisors (39207790).

78275042 is a wasteful number, since it uses less digits than its factorization.

78275042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23424.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 78275042 is about 8847.3183507773. The cubic root of 78275042 is about 427.7674844147.

The spelling of 78275042 in words is "seventy-eight million, two hundred seventy-five thousand, forty-two".