142291398 has 16 divisors (see below), whose sum is σ = 285719616. Its totient is φ = 47241000.

The previous prime is 142291393. The next prime is 142291417. The reversal of 142291398 is 893192241.

142291398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142291393) 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, 45736 + ... + 48747.

It is an arithmetic number, because the mean of its divisors is an integer number (17857476).

Almost surely, 2^142291398 is an apocalyptic number.

142291398 is an abundant number, since it is smaller than the sum of its proper divisors (143428218).

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

142291398 is a wasteful number, since it uses less digits than its factorization.

142291398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94739.

The product of its digits is 31104, while the sum is 39.

The square root of 142291398 is about 11928.5958100692. The cubic root of 142291398 is about 522.0669678179.

The spelling of 142291398 in words is "one hundred forty-two million, two hundred ninety-one thousand, three hundred ninety-eight".