1416655440 has 80 divisors (see below), whose sum is σ = 4879598400. Its totient is φ = 377774208.

The previous prime is 1416655439. The next prime is 1416655463. The reversal of 1416655440 is 445566141.

1416655440 is a `hidden beast` number, since 1 + 4 + 1 + 66 + 554 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1416655395 and 1416655404.

It is a congruent number.

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, 325770 + ... + 330089.

It is an arithmetic number, because the mean of its divisors is an integer number (60994980).

Almost surely, 2^1416655440 is an apocalyptic number.

1416655440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1416655440 is an abundant number, since it is smaller than the sum of its proper divisors (3462942960).

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

1416655440 is a wasteful number, since it uses less digits than its factorization.

1416655440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655881 (or 655869 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1416655440 is about 37638.4834976119. The cubic root of 1416655440 is about 1123.1077166858.

The spelling of 1416655440 in words is "one billion, four hundred sixteen million, six hundred fifty-five thousand, four hundred forty".