1478937920 has 56 divisors (see below), whose sum is σ = 3561359400. Its totient is φ = 584916992.

The previous prime is 1478937893. The next prime is 1478937923. The reversal of 1478937920 is 297398741.

It can be written as a sum of positive squares in 4 ways, for example, as 292273216 + 1186664704 = 17096^2 + 34448^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478937923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2516 + ... + 54444.

Almost surely, 2^1478937920 is an apocalyptic number.

1478937920 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 1478937920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780679700).

1478937920 is an abundant number, since it is smaller than the sum of its proper divisors (2082421480).

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

1478937920 is an equidigital number, since it uses as much as digits as its factorization.

1478937920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52035 (or 52025 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 1478937920 is about 38456.9619184875. The cubic root of 1478937920 is about 1139.3311763742.

The spelling of 1478937920 in words is "one billion, four hundred seventy-eight million, nine hundred thirty-seven thousand, nine hundred twenty".