140909598 has 64 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 45874080.

The previous prime is 140909597. The next prime is 140909599. The reversal of 140909598 is 895909041.

It is an interprime number because it is at equal distance from previous prime (140909597) and next prime (140909599).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140909597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667713 + ... + 667923.

It is an arithmetic number, because the mean of its divisors is an integer number (5008500).

Almost surely, 2^140909598 is an apocalyptic number.

140909598 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140909598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160272000).

140909598 is an abundant number, since it is smaller than the sum of its proper divisors (179634402).

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

140909598 is a wasteful number, since it uses less digits than its factorization.

140909598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 140909598 is about 11870.5348657927. The cubic root of 140909598 is about 520.3715268965.

The spelling of 140909598 in words is "one hundred forty million, nine hundred nine thousand, five hundred ninety-eight".