4451856340 has 24 divisors (see below), whose sum is σ = 9350460000. Its totient is φ = 1780445088.

The previous prime is 4451856337. The next prime is 4451856347. The reversal of 4451856340 is 436581544.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4451856293 and 4451856302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451856347) 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, 135139 + ... + 164821.

It is an arithmetic number, because the mean of its divisors is an integer number (389602500).

Almost surely, 2^4451856340 is an apocalyptic number.

It is an amenable number.

4451856340 is an abundant number, since it is smaller than the sum of its proper divisors (4898603660).

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

4451856340 is a wasteful number, since it uses less digits than its factorization.

4451856340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37191 (or 37189 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 4451856340 is about 66722.2327264309. The cubic root of 4451856340 is about 1645.0548406067.

The spelling of 4451856340 in words is "four billion, four hundred fifty-one million, eight hundred fifty-six thousand, three hundred forty".