74354620 has 12 divisors (see below), whose sum is σ = 156144744. Its totient is φ = 29741840.

The previous prime is 74354603. The next prime is 74354629. The reversal of 74354620 is 2645347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74354629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858846 + ... + 1858885.

It is an arithmetic number, because the mean of its divisors is an integer number (13012062).

Almost surely, 2^74354620 is an apocalyptic number.

It is an amenable number.

74354620 is an abundant number, since it is smaller than the sum of its proper divisors (81790124).

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

74354620 is a wasteful number, since it uses less digits than its factorization.

74354620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717740 (or 3717738 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 74354620 is about 8622.9125010057. The cubic root of 74354620 is about 420.5032139267.

Adding to 74354620 its reverse (2645347), we get a palindrome (76999967).

The spelling of 74354620 in words is "seventy-four million, three hundred fifty-four thousand, six hundred twenty".