140634040 has 64 divisors (see below), whose sum is σ = 327499200. Its totient is φ = 54309888.

The previous prime is 140634023. The next prime is 140634041. The reversal of 140634040 is 40436041.

It is a happy number.

140634040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140634041) 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, 246876 + ... + 247444.

It is an arithmetic number, because the mean of its divisors is an integer number (5117175).

Almost surely, 2^140634040 is an apocalyptic number.

140634040 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 140634040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163749600).

140634040 is an abundant number, since it is smaller than the sum of its proper divisors (186865160).

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

140634040 is a wasteful number, since it uses less digits than its factorization.

140634040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140634040 is about 11858.9223793733. The cubic root of 140634040 is about 520.0320986103.

The spelling of 140634040 in words is "one hundred forty million, six hundred thirty-four thousand, forty".