1478141440 has 40 divisors (see below), whose sum is σ = 3544081200. Its totient is φ = 591255552.

The previous prime is 1478141417. The next prime is 1478141477. The reversal of 1478141440 is 441418741.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1478141396 and 1478141405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286140 + ... + 291259.

It is an arithmetic number, because the mean of its divisors is an integer number (88602030).

Almost surely, 2^1478141440 is an apocalyptic number.

1478141440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478141440 is an abundant number, since it is smaller than the sum of its proper divisors (2065939760).

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

1478141440 is an frugal number, since it uses more digits than its factorization.

1478141440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577422 (or 577406 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 1478141440 is about 38446.6050516817. The cubic root of 1478141440 is about 1139.1266112299.

The spelling of 1478141440 in words is "one billion, four hundred seventy-eight million, one hundred forty-one thousand, four hundred forty".