2420775 has 72 divisors (see below), whose sum is σ = 5222880. Its totient is φ = 1048320.

The previous prime is 2420767. The next prime is 2420779. The reversal of 2420775 is 5770242.

It is not a de Polignac number, because 2420775 - 2³ = 2420767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420779) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 45649 + ... + 45701.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2^2420775 is an apocalyptic number.

2420775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2420775 is an abundant number, since it is smaller than the sum of its proper divisors (2802105).

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

2420775 is a wasteful number, since it uses less digits than its factorization.

2420775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2420775 is about 1555.8839931049. The cubic root of 2420775 is about 134.2717992544.

The spelling of 2420775 in words is "two million, four hundred twenty thousand, seven hundred seventy-five".