158190396 has 96 divisors (see below), whose sum is σ = 469045248. Its totient is φ = 40366080.

The previous prime is 158190379. The next prime is 158190397. The reversal of 158190396 is 693091851.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158190397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31516 + ... + 36188.

It is an arithmetic number, because the mean of its divisors is an integer number (4885888).

Almost surely, 2^158190396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158190396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234522624).

158190396 is an abundant number, since it is smaller than the sum of its proper divisors (310854852).

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

158190396 is a wasteful number, since it uses less digits than its factorization.

158190396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 158190396 is about 12577.3763559814. The cubic root of 158190396 is about 540.8290830779.

The spelling of 158190396 in words is "one hundred fifty-eight million, one hundred ninety thousand, three hundred ninety-six".