74546340 has 96 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 17942400.

The previous prime is 74546321. The next prime is 74546341. The reversal of 74546340 is 4364547.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (74546341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117825 + ... + 118455.

It is an arithmetic number, because the mean of its divisors is an integer number (2388960).

Almost surely, 2^74546340 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 74546340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114670080).

74546340 is an abundant number, since it is smaller than the sum of its proper divisors (154793820).

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

74546340 is a wasteful number, since it uses less digits than its factorization.

74546340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 74546340 is about 8634.0222376364. The cubic root of 74546340 is about 420.8643198654.

The spelling of 74546340 in words is "seventy-four million, five hundred forty-six thousand, three hundred forty".