44021413 has 8 divisors (see below), whose sum is σ = 45564120. Its totient is φ = 42501120.

The previous prime is 44021401. The next prime is 44021431. The reversal of 44021413 is 31412044.

It can be written as a sum of positive squares in 4 ways, for example, as 1014049 + 43007364 = 1007^2 + 6558^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 44021413 - 2⁹ = 44020901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44021113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (5695515).

Almost surely, 2^44021413 is an apocalyptic number.

It is an amenable number.

44021413 is a deficient number, since it is larger than the sum of its proper divisors (1542707).

44021413 is a wasteful number, since it uses less digits than its factorization.

44021413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 44021413 is about 6634.8634499890. The cubic root of 44021413 is about 353.0920934486.

Adding to 44021413 its reverse (31412044), we get a palindrome (75433457).

The spelling of 44021413 in words is "forty-four million, twenty-one thousand, four hundred thirteen".