43142456340 has 144 divisors (see below), whose sum is σ = 135264729600. Its totient is φ = 11118885120.

The previous prime is 43142456317. The next prime is 43142456347. The reversal of 43142456340 is 4365424134.

43142456340 is a `hidden beast` number, since 4 + 3 + 14 + 2 + 4 + 5 + 634 + 0 = 666.

It is a super-2 number, since 2×43142456340² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43142456295 and 43142456304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142456347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4609986 + ... + 4619334.

It is an arithmetic number, because the mean of its divisors is an integer number (939338400).

Almost surely, 2^43142456340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43142456340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67632364800).

43142456340 is an abundant number, since it is smaller than the sum of its proper divisors (92122273260).

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

43142456340 is a wasteful number, since it uses less digits than its factorization.

43142456340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222 (or 10217 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 43142456340 in words is "forty-three billion, one hundred forty-two million, four hundred fifty-six thousand, three hundred forty".