13433890 has 8 divisors (see below), whose sum is σ = 24181020. Its totient is φ = 5373552.

The previous prime is 13433879. The next prime is 13433899. The reversal of 13433890 is 9833431.

13433890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12510369 + 923521 = 3537^2 + 961^2 .

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

It is a super-5 number, since 5×13433890⁵ (a number of 37 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (13433899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671685 + ... + 671704.

Almost surely, 2^13433890 is an apocalyptic number.

13433890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13433890 is a deficient number, since it is larger than the sum of its proper divisors (10747130).

13433890 is a wasteful number, since it uses less digits than its factorization.

13433890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343396.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13433890 is about 3665.2271416653. The cubic root of 13433890 is about 237.7208435193.

The spelling of 13433890 in words is "thirteen million, four hundred thirty-three thousand, eight hundred ninety".