1999036 has 24 divisors (see below), whose sum is σ = 3872960. Its totient is φ = 896832.

The previous prime is 1999033. The next prime is 1999043. The reversal of 1999036 is 6309991.

It is a super-2 number, since 2×1999036² = 7992289858592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 1998986 and 1999004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999033) 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, 1405 + ... + 2443.

2^1999036 is an apocalyptic number.

It is an amenable number.

1999036 is a deficient number, since it is larger than the sum of its proper divisors (1873924).

1999036 is a wasteful number, since it uses less digits than its factorization.

1999036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1999036 is about 1413.8726958252. The cubic root of 1999036 is about 125.9718590047.

The spelling of 1999036 in words is "one million, nine hundred ninety-nine thousand, thirty-six".