1242472448 has 112 divisors (see below), whose sum is σ = 2906475264. Its totient is φ = 520028160.

The previous prime is 1242472447. The next prime is 1242472459. The reversal of 1242472448 is 8442742421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×1242472448² = 3087475568078225408, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1242472447) 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, 2694938 + ... + 2695398.

It is an arithmetic number, because the mean of its divisors is an integer number (25950672).

Almost surely, 2^1242472448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242472448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1453237632).

1242472448 is an abundant number, since it is smaller than the sum of its proper divisors (1664002816).

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

1242472448 is an frugal number, since it uses more digits than its factorization.

1242472448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 517 counting only the distinct ones).

The product of its digits is 114688, while the sum is 38.

The square root of 1242472448 is about 35248.7226435228. The cubic root of 1242472448 is about 1075.0506406286.

The spelling of 1242472448 in words is "one billion, two hundred forty-two million, four hundred seventy-two thousand, four hundred forty-eight".