149879868 has 48 divisors (see below), whose sum is σ = 366051840. Its totient is φ = 47640384.

The previous prime is 149879857. The next prime is 149879869. The reversal of 149879868 is 868978941.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149879869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120546 + ... + 121782.

It is an arithmetic number, because the mean of its divisors is an integer number (7626080).

Almost surely, 2^149879868 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 149879868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183025920).

149879868 is an abundant number, since it is smaller than the sum of its proper divisors (216171972).

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

149879868 is a wasteful number, since it uses less digits than its factorization.

149879868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1704 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The square root of 149879868 is about 12242.5433632068. The cubic root of 149879868 is about 531.1874030420.

The spelling of 149879868 in words is "one hundred forty-nine million, eight hundred seventy-nine thousand, eight hundred sixty-eight".