1242612480 has 72 divisors (see below), whose sum is σ = 3968605872. Its totient is φ = 331362304.

The previous prime is 1242612479. The next prime is 1242612487. The reversal of 1242612480 is 842162421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1242612487) 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, 157959 + ... + 165638.

It is an arithmetic number, because the mean of its divisors is an integer number (55119526).

Almost surely, 2^1242612480 is an apocalyptic number.

1242612480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242612480 is an abundant number, since it is smaller than the sum of its proper divisors (2725993392).

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

1242612480 is an equidigital number, since it uses as much as digits as its factorization.

1242612480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323621 (or 323607 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 1242612480 is about 35250.7089290414. The cubic root of 1242612480 is about 1075.0910267250.

The spelling of 1242612480 in words is "one billion, two hundred forty-two million, six hundred twelve thousand, four hundred eighty".