74162280 has 128 divisors (see below), whose sum is σ = 233539200. Its totient is φ = 18816000.

The previous prime is 74162273. The next prime is 74162293. The reversal of 74162280 is 8226147.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 351375 + ... + 351585.

It is an arithmetic number, because the mean of its divisors is an integer number (1824525).

Almost surely, 2^74162280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74162280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116769600).

74162280 is an abundant number, since it is smaller than the sum of its proper divisors (159376920).

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

74162280 is a wasteful number, since it uses less digits than its factorization.

74162280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 74162280 is about 8611.7524348996. The cubic root of 74162280 is about 420.1403159290.

The spelling of 74162280 in words is "seventy-four million, one hundred sixty-two thousand, two hundred eighty".