2542020 has 48 divisors (see below), whose sum is σ = 7667520. Its totient is φ = 625536.

The previous prime is 2542009. The next prime is 2542021. The reversal of 2542020 is 202452.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2542021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 2409.

It is an arithmetic number, because the mean of its divisors is an integer number (159740).

2^2542020 is an apocalyptic number.

2542020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542020 is an abundant number, since it is smaller than the sum of its proper divisors (5125500).

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

2542020 is a wasteful number, since it uses less digits than its factorization.

2542020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2542020 is about 1594.3713494666. The cubic root of 2542020 is about 136.4770587645.

Adding to 2542020 its reverse (202452), we get a palindrome (2744472).

The spelling of 2542020 in words is "two million, five hundred forty-two thousand, twenty".