30011742 has 32 divisors (see below), whose sum is σ = 66873600. Its totient is φ = 9976824.

The previous prime is 30011741. The next prime is 30011743. The reversal of 30011742 is 24711003.

It is an interprime number because it is at equal distance from previous prime (30011741) and next prime (30011743).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011741) 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, 34509 + ... + 35367.

It is an arithmetic number, because the mean of its divisors is an integer number (2089800).

Almost surely, 2^30011742 is an apocalyptic number.

30011742 is an abundant number, since it is smaller than the sum of its proper divisors (36861858).

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

30011742 is a wasteful number, since it uses less digits than its factorization.

30011742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 30011742 is about 5478.2973632325. The cubic root of 30011742 is about 310.7637843343.

Adding to 30011742 its reverse (24711003), we get a palindrome (54722745).

The spelling of 30011742 in words is "thirty million, eleven thousand, seven hundred forty-two".