74106630 has 128 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 17781120.

The previous prime is 74106601. The next prime is 74106679. The reversal of 74106630 is 3660147.

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

It is a junction number, because it is equal to n+sod(n) for n = 74106594 and 74106603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150685 + ... + 151175.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^74106630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74106630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109105920).

74106630 is an abundant number, since it is smaller than the sum of its proper divisors (144105210).

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

74106630 is a wasteful number, since it uses less digits than its factorization.

74106630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 74106630 is about 8608.5207788563. The cubic root of 74106630 is about 420.0352011313.

Adding to 74106630 its reverse (3660147), we get a palindrome (77766777).

The spelling of 74106630 in words is "seventy-four million, one hundred six thousand, six hundred thirty".