1478925220 has 24 divisors (see below), whose sum is σ = 3106668600. Its totient is φ = 591393792.

The previous prime is 1478925181. The next prime is 1478925233. The reversal of 1478925220 is 225298741.

It can be written as a sum of positive squares in 4 ways, for example, as 144192064 + 1334733156 = 12008^2 + 36534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73626 + ... + 91534.

It is an arithmetic number, because the mean of its divisors is an integer number (129444525).

Almost surely, 2^1478925220 is an apocalyptic number.

1478925220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478925220 is an abundant number, since it is smaller than the sum of its proper divisors (1627743380).

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

1478925220 is a wasteful number, since it uses less digits than its factorization.

1478925220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22047 (or 22045 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1478925220 is about 38456.7967984854. The cubic root of 1478925220 is about 1139.3279151267.

The spelling of 1478925220 in words is "one billion, four hundred seventy-eight million, nine hundred twenty-five thousand, two hundred twenty".