74218030 has 24 divisors (see below), whose sum is σ = 138058776. Its totient is φ = 28725840.

The previous prime is 74218007. The next prime is 74218031. The reversal of 74218030 is 3081247.

It is a junction number, because it is equal to n+sod(n) for n = 74217986 and 74218004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74218031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5749 + ... + 13471.

It is an arithmetic number, because the mean of its divisors is an integer number (5752449).

Almost surely, 2^74218030 is an apocalyptic number.

74218030 is a deficient number, since it is larger than the sum of its proper divisors (63840746).

74218030 is a wasteful number, since it uses less digits than its factorization.

74218030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7792 (or 7761 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 74218030 is about 8614.9886825230. The cubic root of 74218030 is about 420.2455668996.

Adding to 74218030 its reverse (3081247), we get a palindrome (77299277).

It can be divided in two parts, 7421 and 8030, that added together give a palindrome (15451).

The spelling of 74218030 in words is "seventy-four million, two hundred eighteen thousand, thirty".