2031628 has 6 divisors (see below), whose sum is σ = 3555356. Its totient is φ = 1015812.

The previous prime is 2031611. The next prime is 2031671. The reversal of 2031628 is 8261302.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2031599 and 2031608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253950 + ... + 253957.

2^2031628 is an apocalyptic number.

It is an amenable number.

2031628 is a deficient number, since it is larger than the sum of its proper divisors (1523728).

2031628 is a wasteful number, since it uses less digits than its factorization.

2031628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507911 (or 507909 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2031628 is about 1425.3518863775. The cubic root of 2031628 is about 126.6527808724.

The spelling of 2031628 in words is "two million, thirty-one thousand, six hundred twenty-eight".