1260403620 has 48 divisors (see below), whose sum is σ = 4033292928. Its totient is φ = 288092160.

The previous prime is 1260403603. The next prime is 1260403621. The reversal of 1260403620 is 263040621.

It is not an unprimeable number, because it can be changed into a prime (1260403621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500061 + ... + 1500900.

It is an arithmetic number, because the mean of its divisors is an integer number (84026936).

Almost surely, 2^1260403620 is an apocalyptic number.

1260403620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260403620 is an abundant number, since it is smaller than the sum of its proper divisors (2772889308).

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

1260403620 is a wasteful number, since it uses less digits than its factorization.

1260403620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000980 (or 3000978 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1260403620 is about 35502.1635960402. The cubic root of 1260403620 is about 1080.1976147306.

The spelling of 1260403620 in words is "one billion, two hundred sixty million, four hundred three thousand, six hundred twenty".