8194420 has 24 divisors (see below), whose sum is σ = 18532584. Its totient is φ = 3025536.

The previous prime is 8194411. The next prime is 8194429. The reversal of 8194420 is 244918.

It is an interprime number because it is at equal distance from previous prime (8194411) and next prime (8194429).

It can be written as a sum of positive squares in 4 ways, for example, as 60516 + 8133904 = 246^2 + 2852^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15499 + ... + 16018.

It is an arithmetic number, because the mean of its divisors is an integer number (772191).

Almost surely, 2^8194420 is an apocalyptic number.

It is an amenable number.

8194420 is an abundant number, since it is smaller than the sum of its proper divisors (10338164).

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

8194420 is a wasteful number, since it uses less digits than its factorization.

8194420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31539 (or 31537 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8194420 is about 2862.5897365847. The cubic root of 8194420 is about 201.6072163475.

The spelling of 8194420 in words is "eight million, one hundred ninety-four thousand, four hundred twenty".