1642492 has 6 divisors (see below), whose sum is σ = 2874368. Its totient is φ = 821244.

The previous prime is 1642483. The next prime is 1642513. The reversal of 1642492 is 2942461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642492.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 205308 + ... + 205315.

2^1642492 is an apocalyptic number.

It is an amenable number.

1642492 is a deficient number, since it is larger than the sum of its proper divisors (1231876).

1642492 is a wasteful number, since it uses less digits than its factorization.

1642492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410627 (or 410625 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1642492 is about 1281.5974406966. The cubic root of 1642492 is about 117.9870712638.

The spelling of 1642492 in words is "one million, six hundred forty-two thousand, four hundred ninety-two".