1145442 has 24 divisors (see below), whose sum is σ = 2383056. Its totient is φ = 367024.

The previous prime is 1145429. The next prime is 1145461. The reversal of 1145442 is 2445411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4933 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (99294).

2^1145442 is an apocalyptic number.

1145442 is an abundant number, since it is smaller than the sum of its proper divisors (1237614).

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

1145442 is a wasteful number, since it uses less digits than its factorization.

1145442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 261 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 1145442 is about 1070.2532410603. The cubic root of 1145442 is about 104.6303555509.

The spelling of 1145442 in words is "one million, one hundred forty-five thousand, four hundred forty-two".