1992538 has 8 divisors (see below), whose sum is σ = 3026880. Its totient is φ = 983580.

The previous prime is 1992533. The next prime is 1992547. The reversal of 1992538 is 8352991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1992497 and 1992506.

It is not an unprimeable number, because it can be changed into a prime (1992533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6148 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (378360).

2^1992538 is an apocalyptic number.

1992538 is a deficient number, since it is larger than the sum of its proper divisors (1034342).

1992538 is a wasteful number, since it uses less digits than its factorization.

1992538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12692.

The product of its digits is 19440, while the sum is 37.

The square root of 1992538 is about 1411.5728815757. The cubic root of 1992538 is about 125.8352175305.

The spelling of 1992538 in words is "one million, nine hundred ninety-two thousand, five hundred thirty-eight".