74270220 has 48 divisors (see below), whose sum is σ = 217002240. Its totient is φ = 18943936.

The previous prime is 74270201. The next prime is 74270227. The reversal of 74270220 is 2207247.

It is not an unprimeable number, because it can be changed into a prime (74270227) 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 15 ways as a sum of consecutive naturals, for example, 25530 + ... + 28289.

It is an arithmetic number, because the mean of its divisors is an integer number (4520880).

Almost surely, 2^74270220 is an apocalyptic number.

It is an amenable number.

74270220 is an abundant number, since it is smaller than the sum of its proper divisors (142732020).

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

74270220 is a wasteful number, since it uses less digits than its factorization.

74270220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53854 (or 53852 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 74270220 is about 8618.0171733410. The cubic root of 74270220 is about 420.3440491559.

Adding to 74270220 its reverse (2207247), we get a palindrome (76477467).

The spelling of 74270220 in words is "seventy-four million, two hundred seventy thousand, two hundred twenty".