30422078 has 16 divisors (see below), whose sum is σ = 50861520. Its totient is φ = 13562496.

The previous prime is 30422057. The next prime is 30422089. The reversal of 30422078 is 87022403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22901 + ... + 24192.

It is an arithmetic number, because the mean of its divisors is an integer number (3178845).

Almost surely, 2^30422078 is an apocalyptic number.

30422078 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30422078 is a deficient number, since it is larger than the sum of its proper divisors (20439442).

30422078 is a wasteful number, since it uses less digits than its factorization.

30422078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47131.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30422078 is about 5515.6212705370. The cubic root of 30422078 is about 312.1736856192.

The spelling of 30422078 in words is "thirty million, four hundred twenty-two thousand, seventy-eight".