8120402 has 8 divisors (see below), whose sum is σ = 12224496. Its totient is φ = 4045572.

The previous prime is 8120393. The next prime is 8120459. The reversal of 8120402 is 2040218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6608 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (1528062).

Almost surely, 2^8120402 is an apocalyptic number.

8120402 is a deficient number, since it is larger than the sum of its proper divisors (4104094).

8120402 is a wasteful number, since it uses less digits than its factorization.

8120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 8120402 is about 2849.6319060538. The cubic root of 8120402 is about 200.9983581130.

The spelling of 8120402 in words is "eight million, one hundred twenty thousand, four hundred two".