2459144478 has 48 divisors (see below), whose sum is σ = 5733846144. Its totient is φ = 701069040.

The previous prime is 2459144449. The next prime is 2459144489. The reversal of 2459144478 is 8744419542.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128343 + ... + 146253.

It is an arithmetic number, because the mean of its divisors is an integer number (119455128).

Almost surely, 2^2459144478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2459144478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866923072).

2459144478 is an abundant number, since it is smaller than the sum of its proper divisors (3274701666).

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

2459144478 is a wasteful number, since it uses less digits than its factorization.

2459144478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18397 (or 18390 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 2459144478 is about 49589.7618264093. The cubic root of 2459144478 is about 1349.7749012895.

The spelling of 2459144478 in words is "two billion, four hundred fifty-nine million, one hundred forty-four thousand, four hundred seventy-eight".