142494207438 has 24 divisors (see below), whose sum is σ = 313251730344. Its totient is φ = 43180062640.

The previous prime is 142494207431. The next prime is 142494207511. The reversal of 142494207438 is 834702494241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142494207431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98135781 + ... + 98137232.

It is an arithmetic number, because the mean of its divisors is an integer number (13052155431).

Almost surely, 2^142494207438 is an apocalyptic number.

142494207438 is an abundant number, since it is smaller than the sum of its proper divisors (170757522906).

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

142494207438 is a wasteful number, since it uses less digits than its factorization.

142494207438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196273040 (or 196273029 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 142494207438 in words is "one hundred forty-two billion, four hundred ninety-four million, two hundred seven thousand, four hundred thirty-eight".