2634820 has 24 divisors (see below), whose sum is σ = 5652864. Its totient is φ = 1031136.

The previous prime is 2634791. The next prime is 2634823. The reversal of 2634820 is 284362.

2634820 = T₁₆ + T₁₇ + ... + T₂₅₀.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2634823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (235536).

2^2634820 is an apocalyptic number.

2634820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634820 is an abundant number, since it is smaller than the sum of its proper divisors (3018044).

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

2634820 is a wasteful number, since it uses less digits than its factorization.

2634820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2857 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2634820 is about 1623.2128634286. The cubic root of 2634820 is about 138.1180114944.

The spelling of 2634820 in words is "two million, six hundred thirty-four thousand, eight hundred twenty".