3750228720 has 720 divisors, whose sum is σ = 15806988288. Its totient is φ = 823011840.

The previous prime is 3750228701. The next prime is 3750228731. The reversal of 3750228720 is 278220573.

It is a happy number.

3750228720 is a `hidden beast` number, since 375 + 0 + 2 + 287 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 29529297 + ... + 29529423.

Almost surely, 2^3750228720 is an apocalyptic number.

3750228720 is a gapful number since it is divisible by the number (30) 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 3750228720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7903494144).

3750228720 is an abundant number, since it is smaller than the sum of its proper divisors (12056759568).

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

3750228720 is a wasteful number, since it uses less digits than its factorization.

3750228720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 3750228720 is about 61239.1110320847. Note that the first 3 decimals coincide. The cubic root of 3750228720 is about 1553.6478383890.

The spelling of 3750228720 in words is "three billion, seven hundred fifty million, two hundred twenty-eight thousand, seven hundred twenty".