20178414 has 12 divisors (see below), whose sum is σ = 43719936. Its totient is φ = 6726132.

The previous prime is 20178409. The next prime is 20178449. The reversal of 20178414 is 41487102.

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, 560494 + ... + 560529.

It is an arithmetic number, because the mean of its divisors is an integer number (3643328).

Almost surely, 2^20178414 is an apocalyptic number.

20178414 is an abundant number, since it is smaller than the sum of its proper divisors (23541522).

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

20178414 is a wasteful number, since it uses less digits than its factorization.

20178414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121031 (or 1121028 counting only the distinct ones).

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

The square root of 20178414 is about 4492.0389579789. The cubic root of 20178414 is about 272.2465235436.

The spelling of 20178414 in words is "twenty million, one hundred seventy-eight thousand, four hundred fourteen".