918490 has 16 divisors (see below), whose sum is σ = 1685448. Its totient is φ = 360256.

The previous prime is 918481. The next prime is 918497. The reversal of 918490 is 94819.

918490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 793881 + 124609 = 891^2 + 353^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918497) 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, 337 + ... + 1396.

2⁹¹⁸⁴⁹⁰ is an apocalyptic number.

918490 is a deficient number, since it is larger than the sum of its proper divisors (766958).

918490 is a wasteful number, since it uses less digits than its factorization.

918490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 918490 is about 958.3788394993. The cubic root of 918490 is about 97.2056430081.

The spelling of 918490 in words is "nine hundred eighteen thousand, four hundred ninety".