2494821 has 8 divisors (see below), whose sum is σ = 3801664. Its totient is φ = 1425600.

The previous prime is 2494819. The next prime is 2494823. The reversal of 2494821 is 1284942.

It is an interprime number because it is at equal distance from previous prime (2494819) and next prime (2494823).

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

It is not a de Polignac number, because 2494821 - 2¹ = 2494819 is a prime.

It is the 1580-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494823) by changing a digit.

It is a nontrivial repunit in base 1579.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59380 + ... + 59421.

It is an arithmetic number, because the mean of its divisors is an integer number (475208).

2^2494821 is an apocalyptic number.

2494821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2494821 is a deficient number, since it is larger than the sum of its proper divisors (1306843).

2494821 is a wasteful number, since it uses less digits than its factorization.

2494821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118811.

The product of its digits is 4608, while the sum is 30.

The square root of 2494821 is about 1579.5002374169. The cubic root of 2494821 is about 135.6270962463.

The spelling of 2494821 in words is "two million, four hundred ninety-four thousand, eight hundred twenty-one".