1672990 has 32 divisors (see below), whose sum is σ = 3348864. Its totient is φ = 596640.

The previous prime is 1672967. The next prime is 1672999. The reversal of 1672990 is 992761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7257 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (104652).

2^1672990 is an apocalyptic number.

1672990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1672990 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1672990 is a wasteful number, since it uses less digits than its factorization.

1672990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1672990 is about 1293.4411467090. The cubic root of 1672990 is about 118.7128637340.

It can be divided in two parts, 1672 and 990, that added together give a palindrome (2662).

The spelling of 1672990 in words is "one million, six hundred seventy-two thousand, nine hundred ninety".