30227742 has 72 divisors (see below), whose sum is σ = 71497608. Its totient is φ = 9564480.

The previous prime is 30227737. The next prime is 30227749. The reversal of 30227742 is 24772203.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30227749) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 737242 + ... + 737282.

Almost surely, 2^30227742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30227742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35748804).

30227742 is an abundant number, since it is smaller than the sum of its proper divisors (41269866).

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

30227742 is an equidigital number, since it uses as much as digits as its factorization.

30227742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30227742 is about 5497.9761731022. The cubic root of 30227742 is about 311.5075441303.

Adding to 30227742 its reverse (24772203), we get a palindrome (54999945).

The spelling of 30227742 in words is "thirty million, two hundred twenty-seven thousand, seven hundred forty-two".