158849040 has 160 divisors (see below), whose sum is σ = 587390976. Its totient is φ = 34721280.

The previous prime is 158849011. The next prime is 158849057. The reversal of 158849040 is 40948851.

It is a self number, because there is not a number n which added to its sum of digits gives 158849040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36585 + ... + 40695.

Almost surely, 2^158849040 is an apocalyptic number.

158849040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158849040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293695488).

158849040 is an abundant number, since it is smaller than the sum of its proper divisors (428541936).

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

158849040 is a wasteful number, since it uses less digits than its factorization.

158849040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 158849040 is about 12603.5328380577. The cubic root of 158849040 is about 541.5786452107.

The spelling of 158849040 in words is "one hundred fifty-eight million, eight hundred forty-nine thousand, forty".