20341404 has 18 divisors (see below), whose sum is σ = 51418640. Its totient is φ = 6780456.

The previous prime is 20341397. The next prime is 20341411. The reversal of 20341404 is 40414302.

It is an interprime number because it is at equal distance from previous prime (20341397) and next prime (20341411).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282484 + ... + 282555.

Almost surely, 2^20341404 is an apocalyptic number.

It is an amenable number.

20341404 is an abundant number, since it is smaller than the sum of its proper divisors (31077236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20341404 is a wasteful number, since it uses less digits than its factorization.

20341404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565049 (or 565044 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20341404 is about 4510.1445653105. The cubic root of 20341404 is about 272.9775773557.

Adding to 20341404 its reverse (40414302), we get a palindrome (60755706).

The spelling of 20341404 in words is "twenty million, three hundred forty-one thousand, four hundred four".