44721554 has 16 divisors (see below), whose sum is σ = 70930080. Its totient is φ = 21088800.

The previous prime is 44721541. The next prime is 44721557. The reversal of 44721554 is 45512744.

It is a self number, because there is not a number n which added to its sum of digits gives 44721554.

It is not an unprimeable number, because it can be changed into a prime (44721557) 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, 6329 + ... + 11379.

It is an arithmetic number, because the mean of its divisors is an integer number (4433130).

Almost surely, 2^44721554 is an apocalyptic number.

44721554 is a deficient number, since it is larger than the sum of its proper divisors (26208526).

44721554 is a wasteful number, since it uses less digits than its factorization.

44721554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305.

The product of its digits is 22400, while the sum is 32.

The square root of 44721554 is about 6687.4175882773. The cubic root of 44721554 is about 354.9541804250.

The spelling of 44721554 in words is "forty-four million, seven hundred twenty-one thousand, five hundred fifty-four".