30162240 has 112 divisors (see below), whose sum is σ = 106436160. Its totient is φ = 8040960.

The previous prime is 30162229. The next prime is 30162257. The reversal of 30162240 is 4226103.

It is a happy number.

30162240 is a `hidden beast` number, since 3 + 0 + 1 + 622 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6895 + ... + 10385.

Almost surely, 2^30162240 is an apocalyptic number.

30162240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30162240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53218080).

30162240 is an abundant number, since it is smaller than the sum of its proper divisors (76273920).

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

30162240 is a wasteful number, since it uses less digits than its factorization.

30162240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30162240 is about 5492.0160232833. The cubic root of 30162240 is about 311.2823743361.

Adding to 30162240 its reverse (4226103), we get a palindrome (34388343).

The spelling of 30162240 in words is "thirty million, one hundred sixty-two thousand, two hundred forty".