918837442 has 8 divisors (see below), whose sum is σ = 1438180416. Its totient is φ = 439443972.

The previous prime is 918837433. The next prime is 918837461. The reversal of 918837442 is 244738819.

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

It is a super-2 number, since 2×918837442² = 1688524489642206728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 19974727 = 918837442 / (9 + 1 + 8 + 8 + 3 + 7 + 4 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 918837392 and 918837401.

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, 9987318 + ... + 9987409.

It is an arithmetic number, because the mean of its divisors is an integer number (179772552).

Almost surely, 2^918837442 is an apocalyptic number.

918837442 is a deficient number, since it is larger than the sum of its proper divisors (519342974).

918837442 is a wasteful number, since it uses less digits than its factorization.

918837442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19974752.

The product of its digits is 387072, while the sum is 46.

The square root of 918837442 is about 30312.3315170575. The cubic root of 918837442 is about 972.1789829141.

The spelling of 918837442 in words is "nine hundred eighteen million, eight hundred thirty-seven thousand, four hundred forty-two".