12419640 has 48 divisors (see below), whose sum is σ = 40365000. Its totient is φ = 3311808.

The previous prime is 12419633. The next prime is 12419657. The reversal of 12419640 is 4691421.

12419640 is a `hidden beast` number, since 1 + 2 + 4 + 19 + 640 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16890 + ... + 17609.

Almost surely, 2^12419640 is an apocalyptic number.

12419640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12419640 is an abundant number, since it is smaller than the sum of its proper divisors (27945360).

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

12419640 is a wasteful number, since it uses less digits than its factorization.

12419640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34516 (or 34509 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12419640 is about 3524.1509615793. The cubic root of 12419640 is about 231.5810413396.

The spelling of 12419640 in words is "twelve million, four hundred nineteen thousand, six hundred forty".