142649346 has 64 divisors (see below), whose sum is σ = 347086080. Its totient is φ = 38154240.

The previous prime is 142649327. The next prime is 142649389. The reversal of 142649346 is 643946241.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171660 + ... + 172488.

It is an arithmetic number, because the mean of its divisors is an integer number (5423220).

Almost surely, 2^142649346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142649346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173543040).

142649346 is an abundant number, since it is smaller than the sum of its proper divisors (204436734).

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

142649346 is a wasteful number, since it uses less digits than its factorization.

142649346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099.

The product of its digits is 124416, while the sum is 39.

The square root of 142649346 is about 11943.5901637657. The cubic root of 142649346 is about 522.5043715056.

The spelling of 142649346 in words is "one hundred forty-two million, six hundred forty-nine thousand, three hundred forty-six".