2491629 has 16 divisors (see below), whose sum is σ = 3863040. Its totient is φ = 1398960.

The previous prime is 2491609. The next prime is 2491649. The reversal of 2491629 is 9261942.

It is an interprime number because it is at equal distance from previous prime (2491609) and next prime (2491649).

It is not a de Polignac number, because 2491629 - 2⁹ = 2491117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2491629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 2244.

It is an arithmetic number, because the mean of its divisors is an integer number (241440).

2^2491629 is an apocalyptic number.

It is an amenable number.

2491629 is a deficient number, since it is larger than the sum of its proper divisors (1371411).

2491629 is a wasteful number, since it uses less digits than its factorization.

2491629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its digits is 7776, while the sum is 33.

The square root of 2491629 is about 1578.4894678141. The cubic root of 2491629 is about 135.5692288406.

The spelling of 2491629 in words is "two million, four hundred ninety-one thousand, six hundred twenty-nine".