1413388840 has 32 divisors (see below), whose sum is σ = 3367192680. Its totient is φ = 532099072.

The previous prime is 1413388831. The next prime is 1413388871. The reversal of 1413388840 is 488833141.

It can be written as a sum of positive squares in 4 ways, for example, as 1411204356 + 2184484 = 37566^2 + 1478^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1413388793 and 1413388802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038577 + ... + 1039936.

Almost surely, 2^1413388840 is an apocalyptic number.

1413388840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1413388840 is an abundant number, since it is smaller than the sum of its proper divisors (1953803840).

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

1413388840 is a wasteful number, since it uses less digits than its factorization.

1413388840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078541 (or 2078537 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 1413388840 is about 37595.0640377164. The cubic root of 1413388840 is about 1122.2438116873.

The spelling of 1413388840 in words is "one billion, four hundred thirteen million, three hundred eighty-eight thousand, eight hundred forty".