1478051440 has 60 divisors (see below), whose sum is σ = 3485194344. Its totient is φ = 582953472.

The previous prime is 1478051437. The next prime is 1478051453. The reversal of 1478051440 is 441508741.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1478051396 and 1478051405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424587 + ... + 428053.

Almost surely, 2^1478051440 is an apocalyptic number.

1478051440 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 1478051440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1742597172).

1478051440 is an abundant number, since it is smaller than the sum of its proper divisors (2007142904).

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

1478051440 is an equidigital number, since it uses as much as digits as its factorization.

1478051440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3626 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 1478051440 is about 38445.4345794140. The cubic root of 1478051440 is about 1139.1034913233.

The spelling of 1478051440 in words is "one billion, four hundred seventy-eight million, fifty-one thousand, four hundred forty".