2642620 has 24 divisors (see below), whose sum is σ = 5630688. Its totient is φ = 1041600.

The previous prime is 2642609. The next prime is 2642621. The reversal of 2642620 is 262462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2642591 and 2642600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (234612).

2^2642620 is an apocalyptic number.

2642620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642620 is an abundant number, since it is smaller than the sum of its proper divisors (2988068).

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

2642620 is a wasteful number, since it uses less digits than its factorization.

2642620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2642620 is about 1625.6137302570. The cubic root of 2642620 is about 138.2541699608.

The spelling of 2642620 in words is "two million, six hundred forty-two thousand, six hundred twenty".