12240890 has 8 divisors (see below), whose sum is σ = 22033620. Its totient is φ = 4896352.

The previous prime is 12240889. The next prime is 12240911. The reversal of 12240890 is 9804221.

It can be written as a sum of positive squares in 2 ways, for example, as 12229009 + 11881 = 3497^2 + 109^2 .

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

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, 612035 + ... + 612054.

Almost surely, 2^12240890 is an apocalyptic number.

12240890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12240890 is a deficient number, since it is larger than the sum of its proper divisors (9792730).

12240890 is a wasteful number, since it uses less digits than its factorization.

12240890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224096.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12240890 is about 3498.6983293791. The cubic root of 12240890 is about 230.4646561123.

The spelling of 12240890 in words is "twelve million, two hundred forty thousand, eight hundred ninety".