2455620 has 24 divisors (see below), whose sum is σ = 6875904. Its totient is φ = 654816.

The previous prime is 2455619. The next prime is 2455643. The reversal of 2455620 is 265542.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20404 + ... + 20523.

It is an arithmetic number, because the mean of its divisors is an integer number (286496).

2^2455620 is an apocalyptic number.

2455620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455620 is an abundant number, since it is smaller than the sum of its proper divisors (4420284).

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

2455620 is a wasteful number, since it uses less digits than its factorization.

2455620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40939 (or 40937 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2455620 is about 1567.0417990596. The cubic root of 2455620 is about 134.9129754638.

The spelling of 2455620 in words is "two million, four hundred fifty-five thousand, six hundred twenty".