12270742 has 8 divisors (see below), whose sum is σ = 20079432. Its totient is φ = 5577600.

The previous prime is 12270737. The next prime is 12270743. The reversal of 12270742 is 24707221.

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

It is a super-2 number, since 2×12270742² = 301142218461128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270743) 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, 278859 + ... + 278902.

It is an arithmetic number, because the mean of its divisors is an integer number (2509929).

Almost surely, 2^12270742 is an apocalyptic number.

12270742 is a deficient number, since it is larger than the sum of its proper divisors (7808690).

12270742 is a wasteful number, since it uses less digits than its factorization.

12270742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557774.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 12270742 is about 3502.9618896014. The cubic root of 12270742 is about 230.6518496317.

Adding to 12270742 its reverse (24707221), we get a palindrome (36977963).

The spelling of 12270742 in words is "twelve million, two hundred seventy thousand, seven hundred forty-two".