30742425 has 72 divisors (see below), whose sum is σ = 63835200. Its totient is φ = 13852800.

The previous prime is 30742423. The next prime is 30742427. The reversal of 30742425 is 52424703.

It is an interprime number because it is at equal distance from previous prime (30742423) and next prime (30742427).

It is not a de Polignac number, because 30742425 - 2¹ = 30742423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30742423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 206251 + ... + 206399.

It is an arithmetic number, because the mean of its divisors is an integer number (886600).

Almost surely, 2^30742425 is an apocalyptic number.

30742425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30742425 is an abundant number, since it is smaller than the sum of its proper divisors (33092775).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30742425 is a wasteful number, since it uses less digits than its factorization.

30742425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30742425 is about 5544.5851963876. The cubic root of 30742425 is about 313.2656001421.

The spelling of 30742425 in words is "thirty million, seven hundred forty-two thousand, four hundred twenty-five".