74743020 has 96 divisors (see below), whose sum is σ = 253693440. Its totient is φ = 18118080.

The previous prime is 74743013. The next prime is 74743043. The reversal of 74743020 is 2034747.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (2642640).

Almost surely, 2^74743020 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 74743020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126846720).

74743020 is an abundant number, since it is smaller than the sum of its proper divisors (178950420).

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

74743020 is a wasteful number, since it uses less digits than its factorization.

74743020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12612 (or 12604 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 74743020 is about 8645.4045596490. The cubic root of 74743020 is about 421.2341252049.

Adding to 74743020 its reverse (2034747), we get a palindrome (76777767).

The spelling of 74743020 in words is "seventy-four million, seven hundred forty-three thousand, twenty".