44956821 has 16 divisors (see below), whose sum is σ = 73775744. Its totient is φ = 23713344.

The previous prime is 44956819. The next prime is 44956859. The reversal of 44956821 is 12865944.

It is not a de Polignac number, because 44956821 - 2¹ = 44956819 is a prime.

It is a super-2 number, since 2×44956821² = 4042231508852082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 44956821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44957821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82066 + ... + 82611.

It is an arithmetic number, because the mean of its divisors is an integer number (4610984).

Almost surely, 2^44956821 is an apocalyptic number.

It is an amenable number.

44956821 is a deficient number, since it is larger than the sum of its proper divisors (28818923).

44956821 is a wasteful number, since it uses less digits than its factorization.

44956821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164700.

The product of its digits is 69120, while the sum is 39.

The square root of 44956821 is about 6704.9847874548. The cubic root of 44956821 is about 355.5755287861.

It can be divided in two parts, 44 and 956821, that multiplied together give a palindrome (42100124).

The spelling of 44956821 in words is "forty-four million, nine hundred fifty-six thousand, eight hundred twenty-one".