44020240 has 40 divisors (see below), whose sum is σ = 111653568. Its totient is φ = 16007040.

The previous prime is 44020237. The next prime is 44020271. The reversal of 44020240 is 4202044.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24132 + ... + 25891.

Almost surely, 2^44020240 is an apocalyptic number.

44020240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44020240 is an abundant number, since it is smaller than the sum of its proper divisors (67633328).

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

44020240 is a wasteful number, since it uses less digits than its factorization.

44020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50047 (or 50041 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 44020240 is about 6634.7750527053. The cubic root of 44020240 is about 353.0889572423.

Adding to 44020240 its reverse (4202044), we get a palindrome (48222284).

The spelling of 44020240 in words is "forty-four million, twenty thousand, two hundred forty".