2358640 has 20 divisors (see below), whose sum is σ = 5484024. Its totient is φ = 943424.

The previous prime is 2358637. The next prime is 2358661. The reversal of 2358640 is 468532.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2358599 and 2358608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14662 + ... + 14821.

2^2358640 is an apocalyptic number.

2358640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2358640 is an abundant number, since it is smaller than the sum of its proper divisors (3125384).

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

2358640 is a wasteful number, since it uses less digits than its factorization.

2358640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29496 (or 29490 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2358640 is about 1535.7864434875. The cubic root of 2358640 is about 133.1130250714.

The spelling of 2358640 in words is "two million, three hundred fifty-eight thousand, six hundred forty".