44606640 has 240 divisors, whose sum is σ = 163302048. Its totient is φ = 9977856.

The previous prime is 44606633. The next prime is 44606651. The reversal of 44606640 is 4660644.

It is a tau number, because it is divible by the number of its divisors (240).

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 = 44606598 and 44606607.

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, 1538146 + ... + 1538174.

Almost surely, 2^44606640 is an apocalyptic number.

44606640 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 44606640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81651024).

44606640 is an abundant number, since it is smaller than the sum of its proper divisors (118695408).

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

44606640 is a wasteful number, since it uses less digits than its factorization.

44606640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 44606640 is about 6678.8202551049. The cubic root of 44606640 is about 354.6498961926.

The spelling of 44606640 in words is "forty-four million, six hundred six thousand, six hundred forty".