15649046 has 16 divisors (see below), whose sum is σ = 28239360. Its totient is φ = 6353640.

The previous prime is 15649043. The next prime is 15649057. The reversal of 15649046 is 64094651.

It is a junction number, because it is equal to n+sod(n) for n = 15648997 and 15649015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15649043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29150 + ... + 29681.

It is an arithmetic number, because the mean of its divisors is an integer number (1764960).

Almost surely, 2^15649046 is an apocalyptic number.

15649046 is a deficient number, since it is larger than the sum of its proper divisors (12590314).

15649046 is a wasteful number, since it uses less digits than its factorization.

15649046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58859.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 15649046 is about 3955.8875110397. The cubic root of 15649046 is about 250.1281796021.

The spelling of 15649046 in words is "fifteen million, six hundred forty-nine thousand, forty-six".