74020000 has 60 divisors (see below), whose sum is σ = 182149506. Its totient is φ = 29600000.

The previous prime is 74019997. The next prime is 74020007. The reversal of 74020000 is 2047.

It can be written as a sum of positive squares in 5 ways, for example, as 266256 + 73753744 = 516^2 + 8588^2 .

It is not an unprimeable number, because it can be changed into a prime (74020007) 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 9 ways as a sum of consecutive naturals, for example, 18150 + ... + 21850.

Almost surely, 2^74020000 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 74020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91074753).

74020000 is an abundant number, since it is smaller than the sum of its proper divisors (108129506).

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

74020000 is an equidigital number, since it uses as much as digits as its factorization.

74020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3708 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 74020000 is about 8603.4876648950. The cubic root of 74020000 is about 419.8714648248.

Adding to 74020000 its reverse (2047), we get a palindrome (74022047).

The spelling of 74020000 in words is "seventy-four million, twenty thousand".