40433139 has 12 divisors (see below), whose sum is σ = 58471296. Its totient is φ = 26924112.

The previous prime is 40433137. The next prime is 40433143. The reversal of 40433139 is 93133404.

It is not a de Polignac number, because 40433139 - 2¹ = 40433137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40433131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7717 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (4872608).

Almost surely, 2^40433139 is an apocalyptic number.

40433139 is a deficient number, since it is larger than the sum of its proper divisors (18038157).

40433139 is a wasteful number, since it uses less digits than its factorization.

40433139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226 (or 5223 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 40433139 is about 6358.7057645405. The cubic root of 40433139 is about 343.2251890733.

The spelling of 40433139 in words is "forty million, four hundred thirty-three thousand, one hundred thirty-nine".