2490923971 has 4 divisors (see below), whose sum is σ = 2499425712. Its totient is φ = 2482422232.

The previous prime is 2490923969. The next prime is 2490923977. The reversal of 2490923971 is 1793290942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1793290942 = 2 ⋅896645471.

It is a cyclic number.

It is not a de Polignac number, because 2490923971 - 2¹ = 2490923969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2490923977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250431 + ... + 4251016.

It is an arithmetic number, because the mean of its divisors is an integer number (624856428).

Almost surely, 2^2490923971 is an apocalyptic number.

2490923971 is a deficient number, since it is larger than the sum of its proper divisors (8501741).

2490923971 is an equidigital number, since it uses as much as digits as its factorization.

2490923971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501740.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 2490923971 is about 49909.1571858311. The cubic root of 2490923971 is about 1355.5644078719.

The spelling of 2490923971 in words is "two billion, four hundred ninety million, nine hundred twenty-three thousand, nine hundred seventy-one".