1295669280 has 384 divisors, whose sum is σ = 4657201920. Its totient is φ = 300810240.

The previous prime is 1295669227. The next prime is 1295669311. The reversal of 1295669280 is 829665921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9457372 + ... + 9457508.

It is an arithmetic number, because the mean of its divisors is an integer number (12128130).

Almost surely, 2^1295669280 is an apocalyptic number.

1295669280 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 1295669280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2328600960).

1295669280 is an abundant number, since it is smaller than the sum of its proper divisors (3361532640).

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

1295669280 is a wasteful number, since it uses less digits than its factorization.

1295669280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 1295669280 is about 35995.4063735916. The cubic root of 1295669280 is about 1090.1796073585.

The spelling of 1295669280 in words is "one billion, two hundred ninety-five million, six hundred sixty-nine thousand, two hundred eighty".