43021590742 has 16 divisors (see below), whose sum is σ = 70376120640. Its totient is φ = 19604774592.

The previous prime is 43021590721. The next prime is 43021590743. The reversal of 43021590742 is 24709512034.

It is a super-2 number, since 2×43021590742² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43021590743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10470583 + ... + 10474690.

It is an arithmetic number, because the mean of its divisors is an integer number (4398507540).

Almost surely, 2^43021590742 is an apocalyptic number.

43021590742 is a deficient number, since it is larger than the sum of its proper divisors (27354529898).

43021590742 is a wasteful number, since it uses less digits than its factorization.

43021590742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20945367.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 43021590742 in words is "forty-three billion, twenty-one million, five hundred ninety thousand, seven hundred forty-two".