12270972 has 72 divisors (see below), whose sum is σ = 34186320. Its totient is φ = 3413760.

The previous prime is 12270971. The next prime is 12271003. The reversal of 12270972 is 27907221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23854 + ... + 24362.

It is an arithmetic number, because the mean of its divisors is an integer number (474810).

Almost surely, 2^12270972 is an apocalyptic number.

12270972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12270972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17093160).

12270972 is an abundant number, since it is smaller than the sum of its proper divisors (21915348).

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

12270972 is a wasteful number, since it uses less digits than its factorization.

12270972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 12270972 is about 3502.9947188085. The cubic root of 12270972 is about 230.6532907179.

The spelling of 12270972 in words is "twelve million, two hundred seventy thousand, nine hundred seventy-two".