318122940 has 48 divisors (see below), whose sum is σ = 893233152. Its totient is φ = 84595776.

The previous prime is 318122891. The next prime is 318122941. The reversal of 318122940 is 49221813.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 318122898 and 318122907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318122941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14797 + ... + 29243.

It is an arithmetic number, because the mean of its divisors is an integer number (18609024).

Almost surely, 2^318122940 is an apocalyptic number.

318122940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318122940 is an abundant number, since it is smaller than the sum of its proper divisors (575110212).

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

318122940 is a wasteful number, since it uses less digits than its factorization.

318122940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14826 (or 14824 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 318122940 is about 17836.0012334604. The cubic root of 318122940 is about 682.6503687253.

The spelling of 318122940 in words is "three hundred eighteen million, one hundred twenty-two thousand, nine hundred forty".