44002040 has 16 divisors (see below), whose sum is σ = 99004680. Its totient is φ = 17600800.

The previous prime is 44002039. The next prime is 44002067. The reversal of 44002040 is 4020044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549986 + ... + 550065.

Almost surely, 2^44002040 is an apocalyptic number.

44002040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44002040 is an abundant number, since it is smaller than the sum of its proper divisors (55002640).

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

44002040 is a wasteful number, since it uses less digits than its factorization.

44002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100062 (or 1100058 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 44002040 is about 6633.4033497142. The cubic root of 44002040 is about 353.0402894412.

Adding to 44002040 its reverse (4020044), we get a palindrome (48022084).

The spelling of 44002040 in words is "forty-four million, two thousand, forty", and thus it is an eban number.