2146122428 has 24 divisors (see below), whose sum is σ = 4027983120. Its totient is φ = 997401600.

The previous prime is 2146122427. The next prime is 2146122431. The reversal of 2146122428 is 8242216412.

It is a junction number, because it is equal to n+sod(n) for n = 2146122394 and 2146122403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146122427) 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, 262373 + ... + 270428.

It is an arithmetic number, because the mean of its divisors is an integer number (167832630).

Almost surely, 2^2146122428 is an apocalyptic number.

It is an amenable number.

2146122428 is a deficient number, since it is larger than the sum of its proper divisors (1881860692).

2146122428 is a wasteful number, since it uses less digits than its factorization.

2146122428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532877 (or 532875 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 2146122428 is about 46326.2606736179. The cubic root of 2146122428 is about 1289.8865008409.

The spelling of 2146122428 in words is "two billion, one hundred forty-six million, one hundred twenty-two thousand, four hundred twenty-eight".