2028657946 has 32 divisors (see below), whose sum is σ = 3543523200. Its totient is φ = 853112256.

The previous prime is 2028657919. The next prime is 2028657979. The reversal of 2028657946 is 6497568202.

It is a self number, because there is not a number n which added to its sum of digits gives 2028657946.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167280 + ... + 178996.

It is an arithmetic number, because the mean of its divisors is an integer number (110735100).

Almost surely, 2^2028657946 is an apocalyptic number.

2028657946 is a deficient number, since it is larger than the sum of its proper divisors (1514865254).

2028657946 is a wasteful number, since it uses less digits than its factorization.

2028657946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 2028657946 is about 45040.6255063137. The cubic root of 2028657946 is about 1265.9103251855.

The spelling of 2028657946 in words is "two billion, twenty-eight million, six hundred fifty-seven thousand, nine hundred forty-six".