3720278448 has 120 divisors (see below), whose sum is σ = 10717814016. Its totient is φ = 1204156800.

The previous prime is 3720278447. The next prime is 3720278477. The reversal of 3720278448 is 8448720273.

3720278448 is a `hidden beast` number, since 372 + 0 + 278 + 4 + 4 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (3720278447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682293 + ... + 687723.

Almost surely, 2^3720278448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3720278448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5358907008).

3720278448 is an abundant number, since it is smaller than the sum of its proper divisors (6997535568).

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

3720278448 is a wasteful number, since it uses less digits than its factorization.

3720278448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583 (or 5574 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 3720278448 is about 60994.0853525979. The cubic root of 3720278448 is about 1549.5008379490.

The spelling of 3720278448 in words is "three billion, seven hundred twenty million, two hundred seventy-eight thousand, four hundred forty-eight".