1725228388 has 18 divisors (see below), whose sum is σ = 3269258034. Its totient is φ = 796258944.

The previous prime is 1725228383. The next prime is 1725228397. The reversal of 1725228388 is 8838225271.

It can be written as a sum of positive squares in 3 ways, for example, as 146119744 + 1579108644 = 12088^2 + 39738^2 .

It is a super-2 number, since 2×1725228388² = 5952825981522157088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1725228383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1275381 + ... + 1276732.

Almost surely, 2^1725228388 is an apocalyptic number.

It is an amenable number.

1725228388 is a deficient number, since it is larger than the sum of its proper divisors (1544029646).

1725228388 is a wasteful number, since it uses less digits than its factorization.

1725228388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552143 (or 2552128 counting only the distinct ones).

The product of its digits is 430080, while the sum is 46.

The square root of 1725228388 is about 41535.8686920112. The cubic root of 1725228388 is about 1199.3580798248.

The spelling of 1725228388 in words is "one billion, seven hundred twenty-five million, two hundred twenty-eight thousand, three hundred eighty-eight".