74272630 has 16 divisors (see below), whose sum is σ = 134050320. Its totient is φ = 29629152.

The previous prime is 74272591. The next prime is 74272631. The reversal of 74272630 is 3627247.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74272592 and 74272601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74272631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6009 + ... + 13588.

It is an arithmetic number, because the mean of its divisors is an integer number (8378145).

Almost surely, 2^74272630 is an apocalyptic number.

74272630 is a deficient number, since it is larger than the sum of its proper divisors (59777690).

74272630 is a wasteful number, since it uses less digits than its factorization.

74272630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19983.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 74272630 is about 8618.1569955531. The cubic root of 74272630 is about 420.3485956987.

Adding to 74272630 its reverse (3627247), we get a palindrome (77899877).

The spelling of 74272630 in words is "seventy-four million, two hundred seventy-two thousand, six hundred thirty".