1969938 has 12 divisors (see below), whose sum is σ = 4268238. Its totient is φ = 656640.

The previous prime is 1969921. The next prime is 1969949. The reversal of 1969938 is 8399691.

1969938 = 257² + 258² + ... + 283².

It can be written as a sum of positive squares in only one way, i.e., 1447209 + 522729 = 1203^2 + 723^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1969893 and 1969902.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54703 + ... + 54738.

2^1969938 is an apocalyptic number.

1969938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1969938 is an abundant number, since it is smaller than the sum of its proper divisors (2298300).

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

1969938 is a wasteful number, since it uses less digits than its factorization.

1969938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109449 (or 109446 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1969938 is about 1403.5447980025. The cubic root of 1969938 is about 125.3576530318.

The spelling of 1969938 in words is "one million, nine hundred sixty-nine thousand, nine hundred thirty-eight".