12273528 has 32 divisors (see below), whose sum is σ = 31266000. Its totient is φ = 4013568.

The previous prime is 12273523. The next prime is 12273539. The reversal of 12273528 is 82537221.

It is a junction number, because it is equal to n+sod(n) for n = 12273495 and 12273504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12273523) 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, 3553 + ... + 6096.

Almost surely, 2^12273528 is an apocalyptic number.

It is an amenable number.

12273528 is an abundant number, since it is smaller than the sum of its proper divisors (18992472).

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

12273528 is a wasteful number, since it uses less digits than its factorization.

12273528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711 (or 9707 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12273528 is about 3503.3595305078. The cubic root of 12273528 is about 230.6693043606.

The spelling of 12273528 in words is "twelve million, two hundred seventy-three thousand, five hundred twenty-eight".