1649042 has 16 divisors (see below), whose sum is σ = 2581632. Its totient is φ = 789360.

The previous prime is 1649023. The next prime is 1649059. The reversal of 1649042 is 2409461.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817 + ... + 5147.

It is an arithmetic number, because the mean of its divisors is an integer number (161352).

2^1649042 is an apocalyptic number.

1649042 is a deficient number, since it is larger than the sum of its proper divisors (932590).

1649042 is a wasteful number, since it uses less digits than its factorization.

1649042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1649042 is about 1284.1503027294. The cubic root of 1649042 is about 118.1437012094.

The spelling of 1649042 in words is "one million, six hundred forty-nine thousand, forty-two".