2649402 has 64 divisors (see below), whose sum is σ = 6927360. Its totient is φ = 734832.

The previous prime is 2649397. The next prime is 2649403. The reversal of 2649402 is 2049462.

2649402 = 294² + 295² + ... + 321².

2649402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2649403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16173 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (108240).

2^2649402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2649402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463680).

2649402 is an abundant number, since it is smaller than the sum of its proper divisors (4277958).

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

2649402 is a wasteful number, since it uses less digits than its factorization.

2649402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2649402 is about 1627.6983750069. The cubic root of 2649402 is about 138.3723404135.

The spelling of 2649402 in words is "two million, six hundred forty-nine thousand, four hundred two".