30207042 has 24 divisors (see below), whose sum is σ = 65585520. Its totient is φ = 10047960.

The previous prime is 30207029. The next prime is 30207043. The reversal of 30207042 is 24070203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30207043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8809 + ... + 11747.

It is an arithmetic number, because the mean of its divisors is an integer number (2732730).

Almost surely, 2^30207042 is an apocalyptic number.

30207042 is an abundant number, since it is smaller than the sum of its proper divisors (35378478).

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

30207042 is a wasteful number, since it uses less digits than its factorization.

30207042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518 (or 3515 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30207042 is about 5496.0933398187. The cubic root of 30207042 is about 311.4364209588.

Adding to 30207042 its reverse (24070203), we get a palindrome (54277245).

The spelling of 30207042 in words is "thirty million, two hundred seven thousand, forty-two".