1187442 has 24 divisors (see below), whose sum is σ = 2637180. Its totient is φ = 385920.

The previous prime is 1187429. The next prime is 1187453. The reversal of 1187442 is 2447811.

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 1521 = 1089^2 + 39^2 .

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, 67 + ... + 1542.

2^1187442 is an apocalyptic number.

1187442 is an abundant number, since it is smaller than the sum of its proper divisors (1449738).

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

1187442 is a wasteful number, since it uses less digits than its factorization.

1187442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1655 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1187442 is about 1089.6981233351. The cubic root of 1187442 is about 105.8938655238.

The spelling of 1187442 in words is "one million, one hundred eighty-seven thousand, four hundred forty-two".