44621772000 has 384 divisors, whose sum is σ = 162521468928. Its totient is φ = 10628352000.

The previous prime is 44621771977. The next prime is 44621772007. The reversal of 44621772000 is 27712644.

It is a super-2 number, since 2×44621772000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44621772007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4831387 + ... + 4840613.

It is an arithmetic number, because the mean of its divisors is an integer number (423232992).

Almost surely, 2^44621772000 is an apocalyptic number.

44621772000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44621772000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81260734464).

44621772000 is an abundant number, since it is smaller than the sum of its proper divisors (117899696928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44621772000 is a wasteful number, since it uses less digits than its factorization.

44621772000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9299 (or 9281 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 44621772000 in words is "forty-four billion, six hundred twenty-one million, seven hundred seventy-two thousand".