74270530 has 8 divisors (see below), whose sum is σ = 133686972. Its totient is φ = 29708208.

The previous prime is 74270527. The next prime is 74270549. The reversal of 74270530 is 3507247.

It can be written as a sum of positive squares in 2 ways, for example, as 73256481 + 1014049 = 8559^2 + 1007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74270530² = 11032223252961800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713517 + ... + 3713536.

Almost surely, 2^74270530 is an apocalyptic number.

74270530 is a deficient number, since it is larger than the sum of its proper divisors (59416442).

74270530 is a wasteful number, since it uses less digits than its factorization.

74270530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427060.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 74270530 is about 8618.0351588979. The cubic root of 74270530 is about 420.3446339864.

Adding to 74270530 its reverse (3507247), we get a palindrome (77777777).

It can be divided in two parts, 742705 and 30, that multiplied together give a triangular number (22281150 = T₆₆₇₅).

The spelling of 74270530 in words is "seventy-four million, two hundred seventy thousand, five hundred thirty".