1442148993 has 12 divisors (see below), whose sum is σ = 2090794368. Its totient is φ = 957883320.

The previous prime is 1442148991. The next prime is 1442149019. The reversal of 1442148993 is 3998412441.

1442148993 is a `hidden beast` number, since 144 + 21 + 489 + 9 + 3 = 666.

It is not a de Polignac number, because 1442148993 - 2¹ = 1442148991 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1442148991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293205 + ... + 298082.

It is an arithmetic number, because the mean of its divisors is an integer number (174232864).

Almost surely, 2^1442148993 is an apocalyptic number.

It is an amenable number.

1442148993 is a deficient number, since it is larger than the sum of its proper divisors (648645375).

1442148993 is a wasteful number, since it uses less digits than its factorization.

1442148993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591564 (or 591561 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1442148993 is about 37975.6368346865. The cubic root of 1442148993 is about 1129.8046998474.

The spelling of 1442148993 in words is "one billion, four hundred forty-two million, one hundred forty-eight thousand, nine hundred ninety-three".