433994139 has 16 divisors (see below), whose sum is σ = 680775840. Its totient is φ = 272309760.

The previous prime is 433994137. The next prime is 433994149. The reversal of 433994139 is 931499334.

It is not a de Polignac number, because 433994139 - 2¹ = 433994137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 433994094 and 433994103.

It is not an unprimeable number, because it can be changed into a prime (433994131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472302 + ... + 473219.

It is an arithmetic number, because the mean of its divisors is an integer number (42548490).

Almost surely, 2^433994139 is an apocalyptic number.

433994139 is a deficient number, since it is larger than the sum of its proper divisors (246781701).

433994139 is a wasteful number, since it uses less digits than its factorization.

433994139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945547 (or 945541 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 433994139 is about 20832.5259870233. The cubic root of 433994139 is about 757.1140196123.

The spelling of 433994139 in words is "four hundred thirty-three million, nine hundred ninety-four thousand, one hundred thirty-nine".