44142403 has 4 divisors (see below), whose sum is σ = 44155800. Its totient is φ = 44129008.

The previous prime is 44142391. The next prime is 44142409. The reversal of 44142403 is 30424144.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44142403 is a prime.

It is a super-2 number, since 2×44142403² = 3897103485228818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44142409) 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, 2076 + ... + 9622.

It is an arithmetic number, because the mean of its divisors is an integer number (11038950).

Almost surely, 2^44142403 is an apocalyptic number.

44142403 is a deficient number, since it is larger than the sum of its proper divisors (13397).

44142403 is an equidigital number, since it uses as much as digits as its factorization.

44142403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13396.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 44142403 is about 6643.9749397480. The cubic root of 44142403 is about 353.4152811191.

Adding to 44142403 its reverse (30424144), we get a palindrome (74566547).

The spelling of 44142403 in words is "forty-four million, one hundred forty-two thousand, four hundred three".