74630020 has 24 divisors (see below), whose sum is σ = 161779968. Its totient is φ = 28888800.

The previous prime is 74629993. The next prime is 74630029. The reversal of 74630020 is 2003647.

It is a junction number, because it is equal to n+sod(n) for n = 74629973 and 74630000.

It is not an unprimeable number, because it can be changed into a prime (74630029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59566 + ... + 60805.

It is an arithmetic number, because the mean of its divisors is an integer number (6740832).

Almost surely, 2^74630020 is an apocalyptic number.

It is an amenable number.

74630020 is an abundant number, since it is smaller than the sum of its proper divisors (87149948).

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

74630020 is a wasteful number, since it uses less digits than its factorization.

74630020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120411 (or 120409 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 74630020 is about 8638.8668238375. The cubic root of 74630020 is about 421.0217376401.

Adding to 74630020 its reverse (2003647), we get a palindrome (76633667).

The spelling of 74630020 in words is "seventy-four million, six hundred thirty thousand, twenty".