140898040 has 64 divisors (see below), whose sum is σ = 337167360. Its totient is φ = 52807680.

The previous prime is 140897951. The next prime is 140898041. The reversal of 140898040 is 40898041.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 140897987 and 140898005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140898041) 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, 260170 + ... + 260710.

It is an arithmetic number, because the mean of its divisors is an integer number (5268240).

Almost surely, 2^140898040 is an apocalyptic number.

140898040 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 140898040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168583680).

140898040 is an abundant number, since it is smaller than the sum of its proper divisors (196269320).

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

140898040 is a wasteful number, since it uses less digits than its factorization.

140898040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 140898040 is about 11870.0480201219. The cubic root of 140898040 is about 520.3572988178.

Subtracting from 140898040 its reverse (40898041), we obtain a palindrome (99999999).

The spelling of 140898040 in words is "one hundred forty million, eight hundred ninety-eight thousand, forty".