44820840 has 128 divisors (see below), whose sum is σ = 144322560. Its totient is φ = 11096064.

The previous prime is 44820833. The next prime is 44820847. The reversal of 44820840 is 4802844.

It is an interprime number because it is at equal distance from previous prime (44820833) and next prime (44820847).

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 = 44820798 and 44820807.

It is not an unprimeable number, because it can be changed into a prime (44820847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258994 + ... + 259166.

It is an arithmetic number, because the mean of its divisors is an integer number (1127520).

Almost surely, 2^44820840 is an apocalyptic number.

44820840 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 44820840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72161280).

44820840 is an abundant number, since it is smaller than the sum of its proper divisors (99501720).

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

44820840 is a wasteful number, since it uses less digits than its factorization.

44820840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 44820840 is about 6694.8368165326. The cubic root of 44820840 is about 355.2166633486.

The spelling of 44820840 in words is "forty-four million, eight hundred twenty thousand, eight hundred forty".