2398642040 has 16 divisors (see below), whose sum is σ = 5396944680. Its totient is φ = 959456800.

The previous prime is 2398641989. The next prime is 2398642063. The reversal of 2398642040 is 402468932.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2398641985 and 2398642003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29982986 + ... + 29983065.

Almost surely, 2^2398642040 is an apocalyptic number.

2398642040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2398642040 is an abundant number, since it is smaller than the sum of its proper divisors (2998302640).

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

2398642040 is a wasteful number, since it uses less digits than its factorization.

2398642040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59966062 (or 59966058 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 2398642040 is about 48975.9332733946. The cubic root of 2398642040 is about 1338.6133349762.

The spelling of 2398642040 in words is "two billion, three hundred ninety-eight million, six hundred forty-two thousand, forty".