3728072 has 8 divisors (see below), whose sum is σ = 6990150. Its totient is φ = 1864032.

The previous prime is 3728069. The next prime is 3728099. The reversal of 3728072 is 2708273.

It can be written as a sum of positive squares in only one way, i.e., 3407716 + 320356 = 1846^2 + 566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232997 + ... + 233012.

Almost surely, 2^3728072 is an apocalyptic number.

It is an amenable number.

3728072 is a deficient number, since it is larger than the sum of its proper divisors (3262078).

3728072 is a wasteful number, since it uses less digits than its factorization.

3728072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466015 (or 466011 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 3728072 is about 1930.8215867863. The cubic root of 3728072 is about 155.0582091466.

The spelling of 3728072 in words is "three million, seven hundred twenty-eight thousand, seventy-two".