158489438 has 8 divisors (see below), whose sum is σ = 241282632. Its totient is φ = 78061896.

The previous prime is 158489423. The next prime is 158489447. The reversal of 158489438 is 834984851.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591245 + ... + 591512.

It is an arithmetic number, because the mean of its divisors is an integer number (30160329).

Almost surely, 2^158489438 is an apocalyptic number.

158489438 is a deficient number, since it is larger than the sum of its proper divisors (82793194).

158489438 is a wasteful number, since it uses less digits than its factorization.

158489438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182826.

The product of its digits is 1105920, while the sum is 50.

The square root of 158489438 is about 12589.2588344191. The cubic root of 158489438 is about 541.1696617101.

The spelling of 158489438 in words is "one hundred fifty-eight million, four hundred eighty-nine thousand, four hundred thirty-eight".