140034040 has 64 divisors (see below), whose sum is σ = 331452000. Its totient is φ = 53168640.

The previous prime is 140034029. The next prime is 140034043. The reversal of 140034040 is 40430041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034043) 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, 69771 + ... + 71749.

Almost surely, 2^140034040 is an apocalyptic number.

140034040 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 140034040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165726000).

140034040 is an abundant number, since it is smaller than the sum of its proper divisors (191417960).

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

140034040 is a wasteful number, since it uses less digits than its factorization.

140034040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 140034040 is about 11833.5979313140. The cubic root of 140034040 is about 519.2914907032.

Adding to 140034040 its reverse (40430041), we get a palindrome (180464081).

The spelling of 140034040 in words is "one hundred forty million, thirty-four thousand, forty".