140022828 has 72 divisors (see below), whose sum is σ = 387616320. Its totient is φ = 42267360.

The previous prime is 140022811. The next prime is 140022923. The reversal of 140022828 is 828220041.

It is a super-2 number, since 2×140022828² = 39212784722235168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136903 + ... + 137921.

It is an arithmetic number, because the mean of its divisors is an integer number (5383560).

Almost surely, 2^140022828 is an apocalyptic number.

140022828 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 140022828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193808160).

140022828 is an abundant number, since it is smaller than the sum of its proper divisors (247593492).

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

140022828 is a wasteful number, since it uses less digits than its factorization.

140022828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1382 counting only the distinct ones).

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

The square root of 140022828 is about 11833.1241859451. The cubic root of 140022828 is about 519.2776310930.

Adding to 140022828 its reverse (828220041), we get a palindrome (968242869).

The spelling of 140022828 in words is "one hundred forty million, twenty-two thousand, eight hundred twenty-eight".