140228172 has 120 divisors (see below), whose sum is σ = 443719584. Its totient is φ = 37698048.

The previous prime is 140228167. The next prime is 140228177. The reversal of 140228172 is 271822041.

140228172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140228167) and next prime (140228177).

It is a super-3 number, since 3×140228172³ (a number of 25 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (140228177) 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, 36738 + ... + 40374.

Almost surely, 2^140228172 is an apocalyptic number.

140228172 is a gapful number since it is divisible by the number (12) 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 140228172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221859792).

140228172 is an abundant number, since it is smaller than the sum of its proper divisors (303491412).

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

140228172 is a wasteful number, since it uses less digits than its factorization.

140228172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 140228172 is about 11841.7976675841. The cubic root of 140228172 is about 519.5313479694.

The spelling of 140228172 in words is "one hundred forty million, two hundred twenty-eight thousand, one hundred seventy-two".