74303540 has 24 divisors (see below), whose sum is σ = 156251592. Its totient is φ = 29680640.

The previous prime is 74303533. The next prime is 74303557. The reversal of 74303540 is 4530347.

74303540 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9597604 + 64705936 = 3098^2 + 8044^2 .

74303540 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15512 + ... + 19728.

It is an arithmetic number, because the mean of its divisors is an integer number (6510483).

Almost surely, 2^74303540 is an apocalyptic number.

It is an amenable number.

74303540 is an abundant number, since it is smaller than the sum of its proper divisors (81948052).

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

74303540 is a wasteful number, since it uses less digits than its factorization.

74303540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 74303540 is about 8619.9501158649. The cubic root of 74303540 is about 420.4068996934.

Adding to 74303540 its reverse (4530347), we get a palindrome (78833887).

The spelling of 74303540 in words is "seventy-four million, three hundred three thousand, five hundred forty".