15440055434 has 8 divisors (see below), whose sum is σ = 24167043360. Its totient is φ = 7384374316.

The previous prime is 15440055409. The next prime is 15440055437. The reversal of 15440055434 is 43455004451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15440055394 and 15440055403.

It is not an unprimeable number, because it can be changed into a prime (15440055437) 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, 167826644 + ... + 167826735.

It is an arithmetic number, because the mean of its divisors is an integer number (3020880420).

Almost surely, 2^15440055434 is an apocalyptic number.

15440055434 is a deficient number, since it is larger than the sum of its proper divisors (8726987926).

15440055434 is a wasteful number, since it uses less digits than its factorization.

15440055434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335653404.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 15440055434 its reverse (43455004451), we get a palindrome (58895059885).

The spelling of 15440055434 in words is "fifteen billion, four hundred forty million, fifty-five thousand, four hundred thirty-four".