12743490 has 64 divisors (see below), whose sum is σ = 32716800. Its totient is φ = 3167424.

The previous prime is 12743483. The next prime is 12743513. The reversal of 12743490 is 9434721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44889 + ... + 45171.

It is an arithmetic number, because the mean of its divisors is an integer number (511200).

Almost surely, 2^12743490 is an apocalyptic number.

12743490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12743490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16358400).

12743490 is an abundant number, since it is smaller than the sum of its proper divisors (19973310).

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

12743490 is a wasteful number, since it uses less digits than its factorization.

12743490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 12743490 is about 3569.8025155462. The cubic root of 12743490 is about 233.5766690474.

The spelling of 12743490 in words is "twelve million, seven hundred forty-three thousand, four hundred ninety".