158009984 has 32 divisors (see below), whose sum is σ = 343405440. Its totient is φ = 71822080.

The previous prime is 158009983. The next prime is 158009987. The reversal of 158009984 is 489900851.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (158009983) 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, 54704 + ... + 57519.

It is an arithmetic number, because the mean of its divisors is an integer number (10731420).

Almost surely, 2^158009984 is an apocalyptic number.

It is an amenable number.

158009984 is an abundant number, since it is smaller than the sum of its proper divisors (185395456).

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

158009984 is a wasteful number, since it uses less digits than its factorization.

158009984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112248 (or 112236 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 158009984 is about 12570.2022258992. The cubic root of 158009984 is about 540.6234044035.

The spelling of 158009984 in words is "one hundred fifty-eight million, nine thousand, nine hundred eighty-four".