2651420 has 24 divisors (see below), whose sum is σ = 5720064. Its totient is φ = 1031616.

The previous prime is 2651419. The next prime is 2651437. The reversal of 2651420 is 241562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2651392 and 2651401.

It is a congruent number.

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, 1052 + ... + 2531.

It is an arithmetic number, because the mean of its divisors is an integer number (238336).

2^2651420 is an apocalyptic number.

2651420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2651420 is an abundant number, since it is smaller than the sum of its proper divisors (3068644).

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

2651420 is a wasteful number, since it uses less digits than its factorization.

2651420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2651420 is about 1628.3181507310. The cubic root of 2651420 is about 138.4074633729.

Adding to 2651420 its reverse (241562), we get a palindrome (2892982).

The spelling of 2651420 in words is "two million, six hundred fifty-one thousand, four hundred twenty".