43960139 has 8 divisors (see below), whose sum is σ = 45585408. Its totient is φ = 42347880.

The previous prime is 43960123. The next prime is 43960151. The reversal of 43960139 is 93106934.

43960139 = 641² + 642² + ... + 733².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43960139 - 2⁴ = 43960123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43960099 and 43960108.

It is not an unprimeable number, because it can be changed into a prime (43960039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914 + ... + 10160.

It is an arithmetic number, because the mean of its divisors is an integer number (5698176).

Almost surely, 2^43960139 is an apocalyptic number.

43960139 is a deficient number, since it is larger than the sum of its proper divisors (1625269).

43960139 is a wasteful number, since it uses less digits than its factorization.

43960139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 43960139 is about 6630.2442639770. The cubic root of 43960139 is about 352.9281928268.

The spelling of 43960139 in words is "forty-three million, nine hundred sixty thousand, one hundred thirty-nine".