43140398 has 16 divisors (see below), whose sum is σ = 74448384. Its totient is φ = 18365400.

The previous prime is 43140389. The next prime is 43140401. The reversal of 43140398 is 89304134.

It is a super-2 number, since 2×43140398² = 3722187879196808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8090 + ... + 12317.

It is an arithmetic number, because the mean of its divisors is an integer number (4653024).

Almost surely, 2^43140398 is an apocalyptic number.

43140398 is a deficient number, since it is larger than the sum of its proper divisors (31307986).

43140398 is a wasteful number, since it uses less digits than its factorization.

43140398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 43140398 is about 6568.1350473327. The cubic root of 43140398 is about 350.7206864416.

The spelling of 43140398 in words is "forty-three million, one hundred forty thousand, three hundred ninety-eight".