15440801 has 4 divisors (see below), whose sum is σ = 15452352. Its totient is φ = 15429252.

The previous prime is 15440773. The next prime is 15440809. The reversal of 15440801 is 10804451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15440801 - 2¹⁰ = 15439777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15440809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3461 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (3863088).

Almost surely, 2^15440801 is an apocalyptic number.

It is an amenable number.

15440801 is a deficient number, since it is larger than the sum of its proper divisors (11551).

15440801 is a wasteful number, since it uses less digits than its factorization.

15440801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11550.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 15440801 is about 3929.4784641222. The cubic root of 15440801 is about 249.0137194529.

The spelling of 15440801 in words is "fifteen million, four hundred forty thousand, eight hundred one".