20013467 has 4 divisors (see below), whose sum is σ = 20039376. Its totient is φ = 19987560.

The previous prime is 20013463. The next prime is 20013481. The reversal of 20013467 is 76431002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76431002 = 2 ⋅38215501.

It is a cyclic number.

It is not a de Polignac number, because 20013467 - 2² = 20013463 is a prime.

It is a super-2 number, since 2×20013467² = 801077722720178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013463) 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, 11759 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (5009844).

Almost surely, 2^20013467 is an apocalyptic number.

20013467 is a deficient number, since it is larger than the sum of its proper divisors (25909).

20013467 is an equidigital number, since it uses as much as digits as its factorization.

20013467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25908.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20013467 is about 4473.6413579991. The cubic root of 20013467 is about 271.5026730934.

Adding to 20013467 its reverse (76431002), we get a palindrome (96444469).

The spelling of 20013467 in words is "twenty million, thirteen thousand, four hundred sixty-seven".