1418518920 has 128 divisors (see below), whose sum is σ = 5237648640. Its totient is φ = 299289600.

The previous prime is 1418518909. The next prime is 1418518921. The reversal of 1418518920 is 298158141.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1418518921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54031 + ... + 75870.

It is an arithmetic number, because the mean of its divisors is an integer number (40919130).

Almost surely, 2^1418518920 is an apocalyptic number.

1418518920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1418518920 is an abundant number, since it is smaller than the sum of its proper divisors (3819129720).

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

1418518920 is a wasteful number, since it uses less digits than its factorization.

1418518920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129935 (or 129931 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 1418518920 is about 37663.2303447275. The cubic root of 1418518920 is about 1123.5999492384.

The spelling of 1418518920 in words is "one billion, four hundred eighteen million, five hundred eighteen thousand, nine hundred twenty".