20348604 has 96 divisors (see below), whose sum is σ = 55944000. Its totient is φ = 6386688.

The previous prime is 20348599. The next prime is 20348611. The reversal of 20348604 is 40684302.

20348604 is a `hidden beast` number, since 20 + 34 + 8 + 604 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228592 + ... + 228680.

It is an arithmetic number, because the mean of its divisors is an integer number (582750).

Almost surely, 2^20348604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20348604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27972000).

20348604 is an abundant number, since it is smaller than the sum of its proper divisors (35595396).

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

20348604 is a wasteful number, since it uses less digits than its factorization.

20348604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20348604 is about 4510.9426952689. The cubic root of 20348604 is about 273.0097810769.

The spelling of 20348604 in words is "twenty million, three hundred forty-eight thousand, six hundred four".