12252078 has 24 divisors (see below), whose sum is σ = 26611416. Its totient is φ = 4074000.

The previous prime is 12252073. The next prime is 12252083. The reversal of 12252078 is 87025221.

It is an interprime number because it is at equal distance from previous prime (12252073) and next prime (12252083).

It is a super-2 number, since 2×12252078² = 300226830636168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12133 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (1108809).

Almost surely, 2^12252078 is an apocalyptic number.

12252078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12252078 is an abundant number, since it is smaller than the sum of its proper divisors (14359338).

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

12252078 is a wasteful number, since it uses less digits than its factorization.

12252078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12252078 is about 3500.2968445548. The cubic root of 12252078 is about 230.5348485416.

Adding to 12252078 its reverse (87025221), we get a palindrome (99277299).

The spelling of 12252078 in words is "twelve million, two hundred fifty-two thousand, seventy-eight".