1478540268 has 36 divisors (see below), whose sum is σ = 3779422920. Its totient is φ = 487308096.

The previous prime is 1478540267. The next prime is 1478540293. The reversal of 1478540268 is 8620458741.

1478540268 is a `hidden beast` number, since 1 + 47 + 8 + 540 + 2 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1478540267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227530 + ... + 233937.

It is an arithmetic number, because the mean of its divisors is an integer number (104983970).

Almost surely, 2^1478540268 is an apocalyptic number.

1478540268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1478540268 is an abundant number, since it is smaller than the sum of its proper divisors (2300882652).

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

1478540268 is a wasteful number, since it uses less digits than its factorization.

1478540268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461566 (or 461561 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 1478540268 is about 38451.7914797217. The cubic root of 1478540268 is about 1139.2290540050.

The spelling of 1478540268 in words is "one billion, four hundred seventy-eight million, five hundred forty thousand, two hundred sixty-eight".