1272782496 has 24 divisors (see below), whose sum is σ = 3341054304. Its totient is φ = 424260800.

The previous prime is 1272782491. The next prime is 1272782501. The reversal of 1272782496 is 6942872721.

1272782496 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1272782491) and next prime (1272782501).

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (1272782491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6628980 + ... + 6629171.

It is an arithmetic number, because the mean of its divisors is an integer number (139210596).

Almost surely, 2^1272782496 is an apocalyptic number.

1272782496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1272782496 is an abundant number, since it is smaller than the sum of its proper divisors (2068271808).

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

1272782496 is a wasteful number, since it uses less digits than its factorization.

1272782496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13258164 (or 13258156 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 1272782496 is about 35676.0773628492. The cubic root of 1272782496 is about 1083.7224363441.

The spelling of 1272782496 in words is "one billion, two hundred seventy-two million, seven hundred eighty-two thousand, four hundred ninety-six".