918232040 has 64 divisors (see below), whose sum is σ = 2256984000. Its totient is φ = 333437440.

The previous prime is 918232039. The next prime is 918232079. The reversal of 918232040 is 40232819.

It is a junction number, because it is equal to n+sod(n) for n = 918231994 and 918232012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566351 + ... + 567969.

It is an arithmetic number, because the mean of its divisors is an integer number (35265375).

Almost surely, 2^918232040 is an apocalyptic number.

It is an amenable number.

918232040 is an abundant number, since it is smaller than the sum of its proper divisors (1338751960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

918232040 is a wasteful number, since it uses less digits than its factorization.

918232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 918232040 is about 30302.3438037390. The cubic root of 918232040 is about 971.9654201430.

Adding to 918232040 its reverse (40232819), we get a palindrome (958464859).

The spelling of 918232040 in words is "nine hundred eighteen million, two hundred thirty-two thousand, forty".