3728237530 has 16 divisors (see below), whose sum is σ = 7105582440. Its totient is φ = 1403571712.

The previous prime is 3728237507. The next prime is 3728237563. The reversal of 3728237530 is 357328273.

It can be written as a sum of positive squares in 4 ways, for example, as 3607083481 + 121154049 = 60059^2 + 11007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10965235 + ... + 10965574.

Almost surely, 2^3728237530 is an apocalyptic number.

3728237530 is a deficient number, since it is larger than the sum of its proper divisors (3377344910).

3728237530 is a wasteful number, since it uses less digits than its factorization.

3728237530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21930833.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 3728237530 is about 61059.2951973735. The cubic root of 3728237530 is about 1550.6050402408.

The spelling of 3728237530 in words is "three billion, seven hundred twenty-eight million, two hundred thirty-seven thousand, five hundred thirty".