140220288 has 128 divisors (see below), whose sum is σ = 445821600. Its totient is φ = 43130880.

The previous prime is 140220263. The next prime is 140220293. The reversal of 140220288 is 882022041.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43368 + ... + 46488.

Almost surely, 2^140220288 is an apocalyptic number.

140220288 is a gapful number since it is divisible by the number (18) 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 140220288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222910800).

140220288 is an abundant number, since it is smaller than the sum of its proper divisors (305601312).

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

140220288 is a wasteful number, since it uses less digits than its factorization.

140220288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 140220288 is about 11841.4647742583. The cubic root of 140220288 is about 519.5216113098.

The spelling of 140220288 in words is "one hundred forty million, two hundred twenty thousand, two hundred eighty-eight".