1295498880 has 512 divisors, whose sum is σ = 5072256000. Its totient is φ = 310542336.

The previous prime is 1295498857. The next prime is 1295498887. The reversal of 1295498880 is 888945921.

1295498880 is a `hidden beast` number, since 12 + 9 + 549 + 8 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1295498887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16398681 + ... + 16398759.

It is an arithmetic number, because the mean of its divisors is an integer number (9906750).

Almost surely, 2^1295498880 is an apocalyptic number.

1295498880 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 1295498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2536128000).

1295498880 is an abundant number, since it is smaller than the sum of its proper divisors (3776757120).

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

1295498880 is a wasteful number, since it uses less digits than its factorization.

1295498880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The square root of 1295498880 is about 35993.0393270699. The cubic root of 1295498880 is about 1090.1318135909.

The spelling of 1295498880 in words is "one billion, two hundred ninety-five million, four hundred ninety-eight thousand, eight hundred eighty".