2146578412 has 12 divisors (see below), whose sum is σ = 4098013416. Its totient is φ = 975717440.

The previous prime is 2146578383. The next prime is 2146578479. The reversal of 2146578412 is 2148756412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24392893 + ... + 24392980.

It is an arithmetic number, because the mean of its divisors is an integer number (341501118).

Almost surely, 2^2146578412 is an apocalyptic number.

2146578412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2146578412 is a deficient number, since it is larger than the sum of its proper divisors (1951435004).

2146578412 is a wasteful number, since it uses less digits than its factorization.

2146578412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48785888 (or 48785886 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 2146578412 is about 46331.1818541250. The cubic root of 2146578412 is about 1289.9778479060.

The spelling of 2146578412 in words is "two billion, one hundred forty-six million, five hundred seventy-eight thousand, four hundred twelve".