340143140 has 48 divisors (see below), whose sum is σ = 757838592. Its totient is φ = 127796736.

The previous prime is 340143119. The next prime is 340143143. The reversal of 340143140 is 41341043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (340143143) 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, 307829 + ... + 308931.

It is an arithmetic number, because the mean of its divisors is an integer number (15788304).

Almost surely, 2^340143140 is an apocalyptic number.

It is an amenable number.

340143140 is an abundant number, since it is smaller than the sum of its proper divisors (417695452).

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

340143140 is a wasteful number, since it uses less digits than its factorization.

340143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 340143140 is about 18442.9699343679. The cubic root of 340143140 is about 698.0511370487.

Adding to 340143140 its reverse (41341043), we get a palindrome (381484183).

The spelling of 340143140 in words is "three hundred forty million, one hundred forty-three thousand, one hundred forty".