20411478 has 12 divisors (see below), whose sum is σ = 44224908. Its totient is φ = 6803820.

The previous prime is 20411473. The next prime is 20411497. The reversal of 20411478 is 87411402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566968 + ... + 567003.

It is an arithmetic number, because the mean of its divisors is an integer number (3685409).

Almost surely, 2^20411478 is an apocalyptic number.

20411478 is an abundant number, since it is smaller than the sum of its proper divisors (23813430).

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

20411478 is a wasteful number, since it uses less digits than its factorization.

20411478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133979 (or 1133976 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 20411478 is about 4517.9063735319. The cubic root of 20411478 is about 273.2906777907.

The spelling of 20411478 in words is "twenty million, four hundred eleven thousand, four hundred seventy-eight".