12409740 has 192 divisors, whose sum is σ = 45696000. Its totient is φ = 2794176.

The previous prime is 12409729. The next prime is 12409801. The reversal of 12409740 is 4790421.

It is a happy number.

It is a super-3 number, since 3×12409740³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185187 + ... + 185253.

It is an arithmetic number, because the mean of its divisors is an integer number (238000).

Almost surely, 2^12409740 is an apocalyptic number.

12409740 is a gapful number since it is divisible by the number (10) 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 12409740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22848000).

12409740 is an abundant number, since it is smaller than the sum of its proper divisors (33286260).

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

12409740 is a wasteful number, since it uses less digits than its factorization.

12409740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12409740 is about 3522.7460879263. The cubic root of 12409740 is about 231.5194920044.

The spelling of 12409740 in words is "twelve million, four hundred nine thousand, seven hundred forty".