2810942421 has 24 divisors (see below), whose sum is σ = 4436163264. Its totient is φ = 1550855040.

The previous prime is 2810942419. The next prime is 2810942423. The reversal of 2810942421 is 1242490182.

It is an interprime number because it is at equal distance from previous prime (2810942419) and next prime (2810942423).

It is not a de Polignac number, because 2810942421 - 2¹ = 2810942419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2810942423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61920 + ... + 97241.

It is an arithmetic number, because the mean of its divisors is an integer number (184840136).

Almost surely, 2^2810942421 is an apocalyptic number.

2810942421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2810942421 is a deficient number, since it is larger than the sum of its proper divisors (1625220843).

2810942421 is a wasteful number, since it uses less digits than its factorization.

2810942421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159229 (or 159200 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2810942421 is about 53018.3215596269. The cubic root of 2810942421 is about 1411.2934195672.

The spelling of 2810942421 in words is "two billion, eight hundred ten million, nine hundred forty-two thousand, four hundred twenty-one".