44730840 has 256 divisors, whose sum is σ = 172523520. Its totient is φ = 9008640.

The previous prime is 44730811. The next prime is 44730853. The reversal of 44730840 is 4803744.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 44730798 and 44730807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 434229 + ... + 434331.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^44730840 is an apocalyptic number.

44730840 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 44730840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86261760).

44730840 is an abundant number, since it is smaller than the sum of its proper divisors (127792680).

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

44730840 is a wasteful number, since it uses less digits than its factorization.

44730840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 44730840 is about 6688.1118411701. Note that the first 3 decimals coincide. The cubic root of 44730840 is about 354.9787463306.

The spelling of 44730840 in words is "forty-four million, seven hundred thirty thousand, eight hundred forty".