1406142 has 24 divisors (see below), whose sum is σ = 3070080. Its totient is φ = 465120.

The previous prime is 1406101. The next prime is 1406159. The reversal of 1406142 is 2416041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3234 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (127920).

2^1406142 is an apocalyptic number.

1406142 is an abundant number, since it is smaller than the sum of its proper divisors (1663938).

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

1406142 is a wasteful number, since it uses less digits than its factorization.

1406142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1406142 is about 1185.8085848905. The cubic root of 1406142 is about 112.0322504915.

The spelling of 1406142 in words is "one million, four hundred six thousand, one hundred forty-two".