44402021240 has 32 divisors (see below), whose sum is σ = 100050882480. Its totient is φ = 17734793472.

The previous prime is 44402021239. The next prime is 44402021243. The reversal of 44402021240 is 4212020444.

It is a super-2 number, since 2×44402021240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44402021243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785309 + ... + 839948.

Almost surely, 2^44402021240 is an apocalyptic number.

44402021240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44402021240 is an abundant number, since it is smaller than the sum of its proper divisors (55648861240).

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

44402021240 is a wasteful number, since it uses less digits than its factorization.

44402021240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625951 (or 1625947 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 44402021240 its reverse (4212020444), we get a palindrome (48614041684).

The spelling of 44402021240 in words is "forty-four billion, four hundred two million, twenty-one thousand, two hundred forty".