15244401 has 16 divisors (see below), whose sum is σ = 21196800. Its totient is φ = 9733248.

The previous prime is 15244391. The next prime is 15244409. The reversal of 15244401 is 10444251.

It is a happy number.

15244401 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15244401 - 2¹³ = 15236209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15244409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11280 + ... + 12558.

It is an arithmetic number, because the mean of its divisors is an integer number (1324800).

Almost surely, 2^15244401 is an apocalyptic number.

It is an amenable number.

15244401 is a deficient number, since it is larger than the sum of its proper divisors (5952399).

15244401 is a wasteful number, since it uses less digits than its factorization.

15244401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 15244401 is about 3904.4078936505. The cubic root of 15244401 is about 247.9534305985.

Adding to 15244401 its reverse (10444251), we get a palindrome (25688652).

The spelling of 15244401 in words is "fifteen million, two hundred forty-four thousand, four hundred one".