2042655420 has 96 divisors (see below), whose sum is σ = 6483617280. Its totient is φ = 476340480.

The previous prime is 2042655371. The next prime is 2042655437. The reversal of 2042655420 is 245562402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54096 + ... + 83735.

It is an arithmetic number, because the mean of its divisors is an integer number (67537680).

Almost surely, 2^2042655420 is an apocalyptic number.

2042655420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042655420 is an abundant number, since it is smaller than the sum of its proper divisors (4440961860).

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

2042655420 is a wasteful number, since it uses less digits than its factorization.

2042655420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137875 (or 137873 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2042655420 is about 45195.7455962395. The cubic root of 2042655420 is about 1268.8151927804.

The spelling of 2042655420 in words is "two billion, forty-two million, six hundred fifty-five thousand, four hundred twenty".