142408746 has 16 divisors (see below), whose sum is σ = 316464000. Its totient is φ = 47469564.

The previous prime is 142408741. The next prime is 142408759. The reversal of 142408746 is 647804241.

It is a self number, because there is not a number n which added to its sum of digits gives 142408746.

It is not an unprimeable number, because it can be changed into a prime (142408741) 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, 1318546 + ... + 1318653.

It is an arithmetic number, because the mean of its divisors is an integer number (19779000).

Almost surely, 2^142408746 is an apocalyptic number.

142408746 is an abundant number, since it is smaller than the sum of its proper divisors (174055254).

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

142408746 is a wasteful number, since it uses less digits than its factorization.

142408746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637210 (or 2637204 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 142408746 is about 11933.5135647470. The cubic root of 142408746 is about 522.2104449400.

The spelling of 142408746 in words is "one hundred forty-two million, four hundred eight thousand, seven hundred forty-six".