1025498880 has 504 divisors, whose sum is σ = 4235838432. Its totient is φ = 232906752.

The previous prime is 1025498867. The next prime is 1025498897. The reversal of 1025498880 is 888945201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6531762 + ... + 6531918.

Almost surely, 2^1025498880 is an apocalyptic number.

1025498880 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 1025498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2117919216).

1025498880 is an abundant number, since it is smaller than the sum of its proper divisors (3210339552).

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

1025498880 is an frugal number, since it uses more digits than its factorization.

1025498880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 1025498880 is about 32023.4114360104. The cubic root of 1025498880 is about 1008.4283893418.

The spelling of 1025498880 in words is "one billion, twenty-five million, four hundred ninety-eight thousand, eight hundred eighty".