4406297440 has 96 divisors (see below), whose sum is σ = 10812644640. Its totient is φ = 1695412224.

The previous prime is 4406297387. The next prime is 4406297453. The reversal of 4406297440 is 447926044.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4406297393 and 4406297402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522699 + ... + 531061.

It is an arithmetic number, because the mean of its divisors is an integer number (112631715).

Almost surely, 2^4406297440 is an apocalyptic number.

4406297440 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 4406297440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5406322320).

4406297440 is an abundant number, since it is smaller than the sum of its proper divisors (6406347200).

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

4406297440 is a wasteful number, since it uses less digits than its factorization.

4406297440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8504 (or 8496 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 4406297440 is about 66379.9475745500. The cubic root of 4406297440 is about 1639.4239301330.

The spelling of 4406297440 in words is "four billion, four hundred six million, two hundred ninety-seven thousand, four hundred forty".