30418740 has 144 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 7361280.

The previous prime is 30418727. The next prime is 30418741. The reversal of 30418740 is 4781403.

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 (30418741) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 53176 + ... + 53744.

It is an arithmetic number, because the mean of its divisors is an integer number (726180).

Almost surely, 2^30418740 is an apocalyptic number.

30418740 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 30418740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52284960).

30418740 is an abundant number, since it is smaller than the sum of its proper divisors (74151180).

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

30418740 is a wasteful number, since it uses less digits than its factorization.

30418740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 30418740 is about 5515.3186671307. The cubic root of 30418740 is about 312.1622676628.

It can be divided in two parts, 3041 and 8740, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 30418740 in words is "thirty million, four hundred eighteen thousand, seven hundred forty".