2429623840 has 144 divisors (see below), whose sum is σ = 6833356992. Its totient is φ = 813528576.

The previous prime is 2429623793. The next prime is 2429623849. The reversal of 2429623840 is 483269242.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2429623793 and 2429623802.

It is not an unprimeable number, because it can be changed into a prime (2429623849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333517 + ... + 340723.

It is an arithmetic number, because the mean of its divisors is an integer number (47453868).

Almost surely, 2^2429623840 is an apocalyptic number.

2429623840 is a gapful number since it is divisible by the number (20) 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 2429623840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3416678496).

2429623840 is an abundant number, since it is smaller than the sum of its proper divisors (4403733152).

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

2429623840 is a wasteful number, since it uses less digits than its factorization.

2429623840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279 (or 7264 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 2429623840 is about 49291.2146330358. The cubic root of 2429623840 is about 1344.3520489795.

The spelling of 2429623840 in words is "two billion, four hundred twenty-nine million, six hundred twenty-three thousand, eight hundred forty".