1825487720 has 64 divisors (see below), whose sum is σ = 4698190080. Its totient is φ = 625337856.

The previous prime is 1825487711. The next prime is 1825487723. The reversal of 1825487720 is 277845281.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1825487723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447932 + ... + 451988.

It is an arithmetic number, because the mean of its divisors is an integer number (73409220).

Almost surely, 2^1825487720 is an apocalyptic number.

1825487720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1825487720 is an abundant number, since it is smaller than the sum of its proper divisors (2872702360).

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

1825487720 is a wasteful number, since it uses less digits than its factorization.

1825487720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 1825487720 is about 42725.7266760906. The cubic root of 1825487720 is about 1222.1550461641.

The spelling of 1825487720 in words is "one billion, eight hundred twenty-five million, four hundred eighty-seven thousand, seven hundred twenty".