74207040 has 112 divisors (see below), whose sum is σ = 249521472. Its totient is φ = 18620416.

The previous prime is 74207011. The next prime is 74207051. The reversal of 74207040 is 4070247.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 74207040.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14047 + ... + 18593.

Almost surely, 2^74207040 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 74207040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124760736).

74207040 is an abundant number, since it is smaller than the sum of its proper divisors (175314432).

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

74207040 is a wasteful number, since it uses less digits than its factorization.

74207040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584 (or 4574 counting only the distinct ones).

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

The square root of 74207040 is about 8614.3508170959. The cubic root of 74207040 is about 420.2248229431.

Adding to 74207040 its reverse (4070247), we get a palindrome (78277287).

The spelling of 74207040 in words is "seventy-four million, two hundred seven thousand, forty".