918749746 has 4 divisors (see below), whose sum is σ = 1378124622. Its totient is φ = 459374872.

The previous prime is 918749729. The next prime is 918749747. The reversal of 918749746 is 647947819.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 714974121 + 203775625 = 26739^2 + 14275^2 .

It is not an unprimeable number, because it can be changed into a prime (918749747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229687435 + ... + 229687438.

Almost surely, 2^918749746 is an apocalyptic number.

918749746 is a deficient number, since it is larger than the sum of its proper divisors (459374876).

918749746 is a wasteful number, since it uses less digits than its factorization.

918749746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459374875.

The product of its digits is 3048192, while the sum is 55.

The square root of 918749746 is about 30310.8849425417. The cubic root of 918749746 is about 972.1480529162.

The spelling of 918749746 in words is "nine hundred eighteen million, seven hundred forty-nine thousand, seven hundred forty-six".