1019997036 has 30 divisors (see below), whose sum is σ = 2666474580. Its totient is φ = 339998904.

The previous prime is 1019997029. The next prime is 1019997103. The reversal of 1019997036 is 6307999101.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1019996982 and 1019997000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1573746 + ... + 1574393.

It is an arithmetic number, because the mean of its divisors is an integer number (88882486).

Almost surely, 2^1019997036 is an apocalyptic number.

It is an amenable number.

1019997036 is an abundant number, since it is smaller than the sum of its proper divisors (1646477544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1019997036 is a wasteful number, since it uses less digits than its factorization.

1019997036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148155 (or 3148144 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 1019997036 is about 31937.3924420889. The cubic root of 1019997036 is about 1006.6217345168.

The spelling of 1019997036 in words is "one billion, nineteen million, nine hundred ninety-seven thousand, thirty-six".