1240854480 has 120 divisors (see below), whose sum is σ = 4412376072. Its totient is φ = 311427072.

The previous prime is 1240854479. The next prime is 1240854487. The reversal of 1240854480 is 844580421.

1240854480 is a `hidden beast` number, since 124 + 0 + 8 + 54 + 480 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 563397696 + 677456784 = 23736^2 + 26028^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240854487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38449 + ... + 62928.

Almost surely, 2^1240854480 is an apocalyptic number.

1240854480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240854480 is an abundant number, since it is smaller than the sum of its proper divisors (3171521592).

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

1240854480 is a wasteful number, since it uses less digits than its factorization.

1240854480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101413 (or 101404 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 1240854480 is about 35225.7644345726. The cubic root of 1240854480 is about 1074.5837883969.

The spelling of 1240854480 in words is "one billion, two hundred forty million, eight hundred fifty-four thousand, four hundred eighty".