1452525220 has 48 divisors (see below), whose sum is σ = 3233342448. Its totient is φ = 546222080.

The previous prime is 1452525211. The next prime is 1452525247. The reversal of 1452525220 is 225252541.

It can be written as a sum of positive squares in 8 ways, for example, as 133818624 + 1318706596 = 11568^2 + 36314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403830 + ... + 407410.

It is an arithmetic number, because the mean of its divisors is an integer number (67361301).

Almost surely, 2^1452525220 is an apocalyptic number.

1452525220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452525220 is an abundant number, since it is smaller than the sum of its proper divisors (1780817228).

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

1452525220 is a wasteful number, since it uses less digits than its factorization.

1452525220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1452525220 is about 38112.0088685968. The cubic root of 1452525220 is about 1132.5078662345.

Adding to 1452525220 its reverse (225252541), we get a palindrome (1677777761).

The spelling of 1452525220 in words is "one billion, four hundred fifty-two million, five hundred twenty-five thousand, two hundred twenty".