2478929442 has 32 divisors (see below), whose sum is σ = 5436624960. Its totient is φ = 747294720.

The previous prime is 2478929437. The next prime is 2478929447. The reversal of 2478929442 is 2449298742.

It is an interprime number because it is at equal distance from previous prime (2478929437) and next prime (2478929447).

It is a super-2 number, since 2×2478929442² = 12290182356828862728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478929447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84567 + ... + 110042.

It is an arithmetic number, because the mean of its divisors is an integer number (169894530).

Almost surely, 2^2478929442 is an apocalyptic number.

2478929442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2478929442 is an abundant number, since it is smaller than the sum of its proper divisors (2957695518).

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

2478929442 is a wasteful number, since it uses less digits than its factorization.

2478929442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194818.

The product of its digits is 2322432, while the sum is 51.

The square root of 2478929442 is about 49788.8485707392. The cubic root of 2478929442 is about 1353.3850927947.

The spelling of 2478929442 in words is "two billion, four hundred seventy-eight million, nine hundred twenty-nine thousand, four hundred forty-two".