2651634 has 24 divisors (see below), whose sum is σ = 5886972. Its totient is φ = 862080.

The previous prime is 2651629. The next prime is 2651639. The reversal of 2651634 is 4361562.

2651634 is a `hidden beast` number, since 2 + 651 + 6 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2651629) and next prime (2651639).

It can be written as a sum of positive squares in 2 ways, for example, as 2295225 + 356409 = 1515^2 + 597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2651598 and 2651607.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1059 + ... + 2534.

2^2651634 is an apocalyptic number.

2651634 is an abundant number, since it is smaller than the sum of its proper divisors (3235338).

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

2651634 is a wasteful number, since it uses less digits than its factorization.

2651634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642 (or 3639 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2651634 is about 1628.3838613791. The cubic root of 2651634 is about 138.4111869626.

The spelling of 2651634 in words is "two million, six hundred fifty-one thousand, six hundred thirty-four".