44478720 has 432 divisors, whose sum is σ = 187492032. Its totient is φ = 9953280.

The previous prime is 44478703. The next prime is 44478737. The reversal of 44478720 is 2787444.

It is an interprime number because it is at equal distance from previous prime (44478703) and next prime (44478737).

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3421434 + ... + 3421446.

Almost surely, 2^44478720 is an apocalyptic number.

44478720 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 44478720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93746016).

44478720 is an abundant number, since it is smaller than the sum of its proper divisors (143013312).

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

44478720 is a wasteful number, since it uses less digits than its factorization.

44478720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 44478720 is about 6669.2368378998. The cubic root of 44478720 is about 354.3105576950.

The spelling of 44478720 in words is "forty-four million, four hundred seventy-eight thousand, seven hundred twenty".