3918122 has 8 divisors (see below), whose sum is σ = 6329316. Its totient is φ = 1808352.

The previous prime is 3918071. The next prime is 3918127. The reversal of 3918122 is 2218193.

It can be written as a sum of positive squares in 2 ways, for example, as 3916441 + 1681 = 1979^2 + 41^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 150697 = 3918122 / (3 + 9 + 1 + 8 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 3918091 and 3918100.

It is not an unprimeable number, because it can be changed into a prime (3918127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75323 + ... + 75374.

Almost surely, 2^3918122 is an apocalyptic number.

3918122 is a deficient number, since it is larger than the sum of its proper divisors (2411194).

3918122 is a wasteful number, since it uses less digits than its factorization.

3918122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150712.

The product of its digits is 864, while the sum is 26.

The square root of 3918122 is about 1979.4246638859. The cubic root of 3918122 is about 157.6495195552.

The spelling of 3918122 in words is "three million, nine hundred eighteen thousand, one hundred twenty-two".