1142790 has 32 divisors (see below), whose sum is σ = 2992896. Its totient is φ = 276960.

The previous prime is 1142789. The next prime is 1142809. The reversal of 1142790 is 972411.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142790.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (93528).

2^1142790 is an apocalyptic number.

1142790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142790 is an abundant number, since it is smaller than the sum of its proper divisors (1850106).

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

1142790 is a wasteful number, since it uses less digits than its factorization.

1142790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1142790 is about 1069.0135639925. The cubic root of 1142790 is about 104.5495442062.

The spelling of 1142790 in words is "one million, one hundred forty-two thousand, seven hundred ninety".