1418397660 has 144 divisors (see below), whose sum is σ = 4416231456. Its totient is φ = 368349696.

The previous prime is 1418397623. The next prime is 1418397677. The reversal of 1418397660 is 667938141.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1497307 + ... + 1498253.

It is an arithmetic number, because the mean of its divisors is an integer number (30668274).

Almost surely, 2^1418397660 is an apocalyptic number.

1418397660 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 1418397660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208115728).

1418397660 is an abundant number, since it is smaller than the sum of its proper divisors (2997833796).

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

1418397660 is a wasteful number, since it uses less digits than its factorization.

1418397660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1418397660 is about 37661.6205174445. The cubic root of 1418397660 is about 1123.5679318973.

The spelling of 1418397660 in words is "one billion, four hundred eighteen million, three hundred ninety-seven thousand, six hundred sixty".