1418685840 has 400 divisors, whose sum is σ = 5792504256. Its totient is φ = 317260800.

The previous prime is 1418685823. The next prime is 1418685859. The reversal of 1418685840 is 485868141.

1418685840 is a `hidden beast` number, since 1 + 4 + 1 + 8 + 68 + 584 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 925875 + ... + 927405.

Almost surely, 2^1418685840 is an apocalyptic number.

1418685840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1418685840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2896252128).

1418685840 is an abundant number, since it is smaller than the sum of its proper divisors (4373818416).

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

1418685840 is a wasteful number, since it uses less digits than its factorization.

1418685840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 1418685840 is about 37665.4462339158. The cubic root of 1418685840 is about 1123.6440196052.

The spelling of 1418685840 in words is "one billion, four hundred eighteen million, six hundred eighty-five thousand, eight hundred forty".