74950440 has 128 divisors (see below), whose sum is σ = 240537600. Its totient is φ = 18627840.

The previous prime is 74950439. The next prime is 74950441. The reversal of 74950440 is 4405947.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74950439) and next prime (74950441).

It is not an unprimeable number, because it can be changed into a prime (74950441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161649 + ... + 162111.

It is an arithmetic number, because the mean of its divisors is an integer number (1879200).

Almost surely, 2^74950440 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 74950440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120268800).

74950440 is an abundant number, since it is smaller than the sum of its proper divisors (165587160).

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

74950440 is a wasteful number, since it uses less digits than its factorization.

74950440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 74950440 is about 8657.3922170594. The cubic root of 74950440 is about 421.6234221319.

The spelling of 74950440 in words is "seventy-four million, nine hundred fifty thousand, four hundred forty".