2651630 has 8 divisors (see below), whose sum is σ = 4772952. Its totient is φ = 1060648.

The previous prime is 2651629. The next prime is 2651639. The reversal of 2651630 is 361562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2651630² = 14062283313800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2651596 and 2651605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132572 + ... + 132591.

It is an arithmetic number, because the mean of its divisors is an integer number (596619).

2^2651630 is an apocalyptic number.

2651630 is a deficient number, since it is larger than the sum of its proper divisors (2121322).

2651630 is a wasteful number, since it uses less digits than its factorization.

2651630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265170.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2651630 is about 1628.3826331670. The cubic root of 2651630 is about 138.4111173646.

The spelling of 2651630 in words is "two million, six hundred fifty-one thousand, six hundred thirty".