1145388 has 24 divisors (see below), whose sum is σ = 2759680. Its totient is φ = 369360.

The previous prime is 1145387. The next prime is 1145393. The reversal of 1145388 is 8835411.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1145381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168 + ... + 1911.

2^1145388 is an apocalyptic number.

It is an amenable number.

1145388 is an abundant number, since it is smaller than the sum of its proper divisors (1614292).

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

1145388 is a wasteful number, since it uses less digits than its factorization.

1145388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117 (or 3115 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 1145388 is about 1070.2280130888. The cubic root of 1145388 is about 104.6287113158.

The spelling of 1145388 in words is "one million, one hundred forty-five thousand, three hundred eighty-eight".