78254030 has 8 divisors (see below), whose sum is σ = 140857272. Its totient is φ = 31301608.

The previous prime is 78254017. The next prime is 78254047. The reversal of 78254030 is 3045287.

It is a happy number.

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

It is a super-2 number, since 2×78254030² = 12247386422481800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78253984 and 78254002.

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, 3912692 + ... + 3912711.

It is an arithmetic number, because the mean of its divisors is an integer number (17607159).

Almost surely, 2^78254030 is an apocalyptic number.

78254030 is a deficient number, since it is larger than the sum of its proper divisors (62603242).

78254030 is a wasteful number, since it uses less digits than its factorization.

78254030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825410.

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

The square root of 78254030 is about 8846.1307926121. The cubic root of 78254030 is about 427.7292046321.

The spelling of 78254030 in words is "seventy-eight million, two hundred fifty-four thousand, thirty".