30074040 has 96 divisors (see below), whose sum is σ = 98607600. Its totient is φ = 7948800.

The previous prime is 30074039. The next prime is 30074047. The reversal of 30074040 is 4047003.

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 (30074047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49740 + ... + 50340.

Almost surely, 2^30074040 is an apocalyptic number.

30074040 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 30074040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49303800).

30074040 is an abundant number, since it is smaller than the sum of its proper divisors (68533560).

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

30074040 is a wasteful number, since it uses less digits than its factorization.

30074040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 750 counting only the distinct ones).

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

The square root of 30074040 is about 5483.9803063104. The cubic root of 30074040 is about 310.9786622526.

The spelling of 30074040 in words is "thirty million, seventy-four thousand, forty".