13402023 has 8 divisors (see below), whose sum is σ = 17979648. Its totient is φ = 8879544.

The previous prime is 13402009. The next prime is 13402033. The reversal of 13402023 is 32020431.

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

It is not a de Polignac number, because 13402023 - 2⁴ = 13402007 is a prime.

It is a super-2 number, since 2×13402023² = 359228440985058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13401993 and 13402011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402033) 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, 13215 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (2247456).

Almost surely, 2^13402023 is an apocalyptic number.

13402023 is a deficient number, since it is larger than the sum of its proper divisors (4577625).

13402023 is a wasteful number, since it uses less digits than its factorization.

13402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27573.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13402023 is about 3660.8773538593. The cubic root of 13402023 is about 237.5327260536.

Adding to 13402023 its reverse (32020431), we get a palindrome (45422454).

The spelling of 13402023 in words is "thirteen million, four hundred two thousand, twenty-three".