149887984240 has 80 divisors (see below), whose sum is σ = 365526301248. Its totient is φ = 57051168768.

The previous prime is 149887984223. The next prime is 149887984241. The reversal of 149887984240 is 42489788941.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×149887984240³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149887984241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144082 + ... + 566158.

Almost surely, 2^149887984240 is an apocalyptic number.

149887984240 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 149887984240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182763150624).

149887984240 is an abundant number, since it is smaller than the sum of its proper divisors (215638317008).

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

149887984240 is a wasteful number, since it uses less digits than its factorization.

149887984240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422306 (or 422300 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 149887984240 in words is "one hundred forty-nine billion, eight hundred eighty-seven million, nine hundred eighty-four thousand, two hundred forty".