158207838 has 8 divisors (see below), whose sum is σ = 316415688. Its totient is φ = 52735944.

The previous prime is 158207827. The next prime is 158207839. The reversal of 158207838 is 838702851.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

158207838 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 158207838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158207839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13183981 + ... + 13183992.

It is an arithmetic number, because the mean of its divisors is an integer number (39551961).

Almost surely, 2^158207838 is an apocalyptic number.

158207838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

158207838 is a wasteful number, since it uses less digits than its factorization.

158207838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26367978.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 158207838 is about 12578.0697247233. The cubic root of 158207838 is about 540.8489595357.

The spelling of 158207838 in words is "one hundred fifty-eight million, two hundred seven thousand, eight hundred thirty-eight".