140747220 has 120 divisors (see below), whose sum is σ = 444532704. Its totient is φ = 37278144.

The previous prime is 140747209. The next prime is 140747227. The reversal of 140747220 is 22747041.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140747227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 458307 + ... + 458613.

Almost surely, 2^140747220 is an apocalyptic number.

140747220 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 140747220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222266352).

140747220 is an abundant number, since it is smaller than the sum of its proper divisors (303785484).

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

140747220 is a wasteful number, since it uses less digits than its factorization.

140747220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 140747220 is about 11863.6933540951. The cubic root of 140747220 is about 520.1715656764.

The spelling of 140747220 in words is "one hundred forty million, seven hundred forty-seven thousand, two hundred twenty".