2420420931 has 6 divisors (see below), whose sum is σ = 3496163580. Its totient is φ = 1613613948.

The previous prime is 2420420911. The next prime is 2420420941. The reversal of 2420420931 is 1390240242.

2420420931 is a `hidden beast` number, since 2 + 420 + 4 + 209 + 31 = 666.

It is not a de Polignac number, because 2420420931 - 2⁷ = 2420420803 is a prime.

It is a super-2 number, since 2×2420420931² = 11716874966445813522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2420420895 and 2420420904.

It is not an unprimeable number, because it can be changed into a prime (2420420911) 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 5 ways as a sum of consecutive naturals, for example, 134467821 + ... + 134467838.

It is an arithmetic number, because the mean of its divisors is an integer number (582693930).

Almost surely, 2^2420420931 is an apocalyptic number.

2420420931 is a deficient number, since it is larger than the sum of its proper divisors (1075742649).

2420420931 is a wasteful number, since it uses less digits than its factorization.

2420420931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268935665 (or 268935662 counting only the distinct ones).

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

The square root of 2420420931 is about 49197.7736386516. The cubic root of 2420420931 is about 1342.6525261823.

The spelling of 2420420931 in words is "two billion, four hundred twenty million, four hundred twenty thousand, nine hundred thirty-one".