13391433 has 24 divisors (see below), whose sum is σ = 21812000. Its totient is φ = 8114040.

The previous prime is 13391431. The next prime is 13391437. The reversal of 13391433 is 33419331.

It is not a de Polignac number, because 13391433 - 2¹ = 13391431 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13391397 and 13391406.

It is not an unprimeable number, because it can be changed into a prime (13391431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1218 + ... + 5316.

Almost surely, 2^13391433 is an apocalyptic number.

It is an amenable number.

13391433 is a deficient number, since it is larger than the sum of its proper divisors (8420567).

13391433 is a wasteful number, since it uses less digits than its factorization.

13391433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130 (or 4113 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 13391433 is about 3659.4306934276. The cubic root of 13391433 is about 237.4701450930.

It can be divided in two parts, 13391 and 433, that added together give a cube (13824 = 24³).

The spelling of 13391433 in words is "thirteen million, three hundred ninety-one thousand, four hundred thirty-three".