140132340 has 36 divisors (see below), whose sum is σ = 425068644. Its totient is φ = 37368576.

The previous prime is 140132339. The next prime is 140132341. The reversal of 140132340 is 43231041.

It is an interprime number because it is at equal distance from previous prime (140132339) and next prime (140132341).

It can be written as a sum of positive squares in 2 ways, for example, as 94245264 + 45887076 = 9708^2 + 6774^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140132341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389077 + ... + 389436.

Almost surely, 2^140132340 is an apocalyptic number.

140132340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140132340 is an abundant number, since it is smaller than the sum of its proper divisors (284936304).

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

140132340 is a wasteful number, since it uses less digits than its factorization.

140132340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778528 (or 778523 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140132340 is about 11837.7506309265. The cubic root of 140132340 is about 519.4129716750.

Adding to 140132340 its reverse (43231041), we get a palindrome (183363381).

The spelling of 140132340 in words is "one hundred forty million, one hundred thirty-two thousand, three hundred forty".