1240532480 has 80 divisors (see below), whose sum is σ = 3244841424. Its totient is φ = 451092480.

The previous prime is 1240532479. The next prime is 1240532509. The reversal of 1240532480 is 842350421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6134 + ... + 50186.

Almost surely, 2^1240532480 is an apocalyptic number.

1240532480 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 1240532480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622420712).

1240532480 is an abundant number, since it is smaller than the sum of its proper divisors (2004308944).

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

1240532480 is an equidigital number, since it uses as much as digits as its factorization.

1240532480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44087 (or 44071 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1240532480 is about 35221.1936197512. The cubic root of 1240532480 is about 1074.4908293594.

The spelling of 1240532480 in words is "one billion, two hundred forty million, five hundred thirty-two thousand, four hundred eighty".