2420685 has 40 divisors (see below), whose sum is σ = 4472160. Its totient is φ = 1251936.

The previous prime is 2420633. The next prime is 2420687. The reversal of 2420685 is 5860242.

It is not a de Polignac number, because 2420685 - 2⁷ = 2420557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17346 + ... + 17484.

It is an arithmetic number, because the mean of its divisors is an integer number (111804).

2^2420685 is an apocalyptic number.

It is an amenable number.

2420685 is a deficient number, since it is larger than the sum of its proper divisors (2051475).

2420685 is a wasteful number, since it uses less digits than its factorization.

2420685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2420685 is about 1555.8550703713. The cubic root of 2420685 is about 134.2701352403.

The spelling of 2420685 in words is "two million, four hundred twenty thousand, six hundred eighty-five".