1478921472 has 216 divisors, whose sum is σ = 4924535616. Its totient is φ = 418111488.

The previous prime is 1478921453. The next prime is 1478921491. The reversal of 1478921472 is 2741298741.

It is an interprime number because it is at equal distance from previous prime (1478921453) and next prime (1478921491).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1725268 + ... + 1726124.

It is an arithmetic number, because the mean of its divisors is an integer number (22798776).

Almost surely, 2^1478921472 is an apocalyptic number.

1478921472 is a gapful number since it is divisible by the number (12) 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 1478921472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462267808).

1478921472 is an abundant number, since it is smaller than the sum of its proper divisors (3445614144).

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

1478921472 is a wasteful number, since it uses less digits than its factorization.

1478921472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 976 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 1478921472 is about 38456.7480684470. The cubic root of 1478921472 is about 1139.3269526700.

The spelling of 1478921472 in words is "one billion, four hundred seventy-eight million, nine hundred twenty-one thousand, four hundred seventy-two".