13649470 has 24 divisors (see below), whose sum is σ = 26104824. Its totient is φ = 5137536.

The previous prime is 13649431. The next prime is 13649483. The reversal of 13649470 is 7494631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 529 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (1087701).

Almost surely, 2^13649470 is an apocalyptic number.

13649470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13649470 is a deficient number, since it is larger than the sum of its proper divisors (12455354).

13649470 is a wasteful number, since it uses less digits than its factorization.

13649470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13649470 is about 3694.5189132010. The cubic root of 13649470 is about 238.9857078456.

The spelling of 13649470 in words is "thirteen million, six hundred forty-nine thousand, four hundred seventy".