1260262840 has 32 divisors (see below), whose sum is σ = 2927064960. Its totient is φ = 487843200.

The previous prime is 1260262813. The next prime is 1260262849. The reversal of 1260262840 is 482620621.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260262849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506931 + ... + 509410.

It is an arithmetic number, because the mean of its divisors is an integer number (91470780).

Almost surely, 2^1260262840 is an apocalyptic number.

1260262840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260262840 is an abundant number, since it is smaller than the sum of its proper divisors (1666802120).

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

1260262840 is a wasteful number, since it uses less digits than its factorization.

1260262840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016383 (or 1016379 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1260262840 is about 35500.1808446098. The cubic root of 1260262840 is about 1080.1573958991.

The spelling of 1260262840 in words is "one billion, two hundred sixty million, two hundred sixty-two thousand, eight hundred forty".