1478243520 has 560 divisors, whose sum is σ = 5855195808. Its totient is φ = 351682560.

The previous prime is 1478243509. The next prime is 1478243521. The reversal of 1478243520 is 253428741.

It is a happy number.

1478243520 is a `hidden beast` number, since 14 + 7 + 82 + 43 + 520 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1478243521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13815307 + ... + 13815413.

Almost surely, 2^1478243520 is an apocalyptic number.

1478243520 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 1478243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927597904).

1478243520 is an abundant number, since it is smaller than the sum of its proper divisors (4376952288).

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

1478243520 is a wasteful number, since it uses less digits than its factorization.

1478243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1478243520 is about 38447.9325842106. The cubic root of 1478243520 is about 1139.1528332058.

The spelling of 1478243520 in words is "one billion, four hundred seventy-eight million, two hundred forty-three thousand, five hundred twenty".