30242840 has 32 divisors (see below), whose sum is σ = 68262480. Its totient is φ = 12058752.

The previous prime is 30242837. The next prime is 30242843. The reversal of 30242840 is 4824203.

It is an interprime number because it is at equal distance from previous prime (30242837) and next prime (30242843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13907 + ... + 15933.

Almost surely, 2^30242840 is an apocalyptic number.

It is an amenable number.

30242840 is an abundant number, since it is smaller than the sum of its proper divisors (38019640).

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

30242840 is a wasteful number, since it uses less digits than its factorization.

30242840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 30242840 is about 5499.3490523879. The cubic root of 30242840 is about 311.5593989031.

The spelling of 30242840 in words is "thirty million, two hundred forty-two thousand, eight hundred forty".