43260642 has 40 divisors (see below), whose sum is σ = 97970796. Its totient is φ = 14266368.

The previous prime is 43260641. The next prime is 43260643. The reversal of 43260642 is 24606234.

It is an interprime number because it is at equal distance from previous prime (43260641) and next prime (43260643).

It can be written as a sum of positive squares in 2 ways, for example, as 40947201 + 2313441 = 6399^2 + 1521^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43260641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14338 + ... + 17090.

Almost surely, 2^43260642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43260642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48985398).

43260642 is an abundant number, since it is smaller than the sum of its proper divisors (54710154).

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

43260642 is a wasteful number, since it uses less digits than its factorization.

43260642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 43260642 is about 6577.2822654954. The cubic root of 43260642 is about 351.0462354172.

Adding to 43260642 its reverse (24606234), we get a palindrome (67866876).

The spelling of 43260642 in words is "forty-three million, two hundred sixty thousand, six hundred forty-two".