2491478 has 16 divisors (see below), whose sum is σ = 4101840. Its totient is φ = 1125600.

The previous prime is 2491471. The next prime is 2491487. The reversal of 2491478 is 8741942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5708 + ... + 6128.

It is an arithmetic number, because the mean of its divisors is an integer number (256365).

2^2491478 is an apocalyptic number.

2491478 is a deficient number, since it is larger than the sum of its proper divisors (1610362).

2491478 is a wasteful number, since it uses less digits than its factorization.

2491478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its digits is 16128, while the sum is 35.

The square root of 2491478 is about 1578.4416365517. The cubic root of 2491478 is about 135.5664901548.

The spelling of 2491478 in words is "two million, four hundred ninety-one thousand, four hundred seventy-eight".