1442857146 has 16 divisors (see below), whose sum is σ = 2889084000. Its totient is φ = 480390768.

The previous prime is 1442857139. The next prime is 1442857147. The reversal of 1442857146 is 6417582441.

It is a junction number, because it is equal to n+sod(n) for n = 1442857098 and 1442857107.

It is not an unprimeable number, because it can be changed into a prime (1442857147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134821 + ... + 145128.

It is an arithmetic number, because the mean of its divisors is an integer number (180567750).

Almost surely, 2^1442857146 is an apocalyptic number.

1442857146 is an abundant number, since it is smaller than the sum of its proper divisors (1446226854).

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

1442857146 is a wasteful number, since it uses less digits than its factorization.

1442857146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280813.

The product of its digits is 215040, while the sum is 42.

The square root of 1442857146 is about 37984.9594708221. The cubic root of 1442857146 is about 1129.9895960616.

The spelling of 1442857146 in words is "one billion, four hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-six".