1478178240 has 224 divisors, whose sum is σ = 5851574784. Its totient is φ = 307138560.

The previous prime is 1478178197. The next prime is 1478178253. The reversal of 1478178240 is 428718741.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1478178192 and 1478178201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63922 + ... + 83918.

Almost surely, 2^1478178240 is an apocalyptic number.

1478178240 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 1478178240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2925787392).

1478178240 is an abundant number, since it is smaller than the sum of its proper divisors (4373396544).

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

1478178240 is a wasteful number, since it uses less digits than its factorization.

1478178240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035 (or 20025 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 1478178240 is about 38447.0836345229. The cubic root of 1478178240 is about 1139.1360644325.

The spelling of 1478178240 in words is "one billion, four hundred seventy-eight million, one hundred seventy-eight thousand, two hundred forty".