74334620 has 48 divisors (see below), whose sum is σ = 166017600. Its totient is φ = 27895296.

The previous prime is 74334619. The next prime is 74334629. The reversal of 74334620 is 2643347.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74334629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22856 + ... + 25904.

It is an arithmetic number, because the mean of its divisors is an integer number (3458700).

Almost surely, 2^74334620 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 74334620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83008800).

74334620 is an abundant number, since it is smaller than the sum of its proper divisors (91682980).

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

74334620 is a wasteful number, since it uses less digits than its factorization.

74334620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134 (or 3132 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 74334620 is about 8621.7527220398. The cubic root of 74334620 is about 420.4655080498.

Adding to 74334620 its reverse (2643347), we get a palindrome (76977967).

The spelling of 74334620 in words is "seventy-four million, three hundred thirty-four thousand, six hundred twenty".