1142628 has 12 divisors (see below), whose sum is σ = 2666160. Its totient is φ = 380872.

The previous prime is 1142599. The next prime is 1142633. The reversal of 1142628 is 8262411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1142598 and 1142607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47598 + ... + 47621.

It is an arithmetic number, because the mean of its divisors is an integer number (222180).

2^1142628 is an apocalyptic number.

It is an amenable number.

1142628 is an abundant number, since it is smaller than the sum of its proper divisors (1523532).

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

1142628 is a wasteful number, since it uses less digits than its factorization.

1142628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95226 (or 95224 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1142628 is about 1068.9377905192. The cubic root of 1142628 is about 104.5446037165.

It can be divided in two parts, 1142 and 628, that added together give a triangular number (1770 = T₅₉).

The spelling of 1142628 in words is "one million, one hundred forty-two thousand, six hundred twenty-eight".