2640374 has 8 divisors (see below), whose sum is σ = 4320648. Its totient is φ = 1200160.

The previous prime is 2640371. The next prime is 2640383. The reversal of 2640374 is 4730462.

It is a happy number.

2640374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640371) 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 3 ways as a sum of consecutive naturals, for example, 59987 + ... + 60030.

It is an arithmetic number, because the mean of its divisors is an integer number (540081).

2^2640374 is an apocalyptic number.

2640374 is a deficient number, since it is larger than the sum of its proper divisors (1680274).

2640374 is a wasteful number, since it uses less digits than its factorization.

2640374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120030.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 2640374 is about 1624.9227673954. The cubic root of 2640374 is about 138.2149908029.

The spelling of 2640374 in words is "two million, six hundred forty thousand, three hundred seventy-four".