12765490 has 16 divisors (see below), whose sum is σ = 23719680. Its totient is φ = 4941360.

The previous prime is 12765463. The next prime is 12765499. The reversal of 12765490 is 9456721.

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

It is not an unprimeable number, because it can be changed into a prime (12765499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20280 + ... + 20899.

It is an arithmetic number, because the mean of its divisors is an integer number (1482480).

Almost surely, 2^12765490 is an apocalyptic number.

12765490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12765490 is a deficient number, since it is larger than the sum of its proper divisors (10954190).

12765490 is a wasteful number, since it uses less digits than its factorization.

12765490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41217.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12765490 is about 3572.8825897306. The cubic root of 12765490 is about 233.7110051531.

The spelling of 12765490 in words is "twelve million, seven hundred sixty-five thousand, four hundred ninety".