30247995 has 16 divisors (see below), whose sum is σ = 48898080. Its totient is φ = 15965184.

The previous prime is 30247993. The next prime is 30248003. The reversal of 30247995 is 59974203.

It is not a de Polignac number, because 30247995 - 2¹ = 30247993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30247991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8940 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (3056130).

Almost surely, 2^30247995 is an apocalyptic number.

30247995 is a deficient number, since it is larger than the sum of its proper divisors (18650085).

30247995 is a wasteful number, since it uses less digits than its factorization.

30247995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20894.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 30247995 is about 5499.8177242523. The cubic root of 30247995 is about 311.5771000346.

The spelling of 30247995 in words is "thirty million, two hundred forty-seven thousand, nine hundred ninety-five".