12737420 has 24 divisors (see below), whose sum is σ = 28322784. Its totient is φ = 4795136.

The previous prime is 12737399. The next prime is 12737441. The reversal of 12737420 is 2473721.

It is an interprime number because it is at equal distance from previous prime (12737399) and next prime (12737441).

It is a self number, because there is not a number n which added to its sum of digits gives 12737420.

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 7 ways as a sum of consecutive naturals, for example, 18392 + ... + 19071.

It is an arithmetic number, because the mean of its divisors is an integer number (1180116).

Almost surely, 2^12737420 is an apocalyptic number.

12737420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12737420 is an abundant number, since it is smaller than the sum of its proper divisors (15585364).

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

12737420 is a wasteful number, since it uses less digits than its factorization.

12737420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37489 (or 37487 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 12737420 is about 3568.9522271950. The cubic root of 12737420 is about 233.5395772839.

The spelling of 12737420 in words is "twelve million, seven hundred thirty-seven thousand, four hundred twenty".