1972306 has 16 divisors (see below), whose sum is σ = 3580416. Its totient is φ = 795456.

The previous prime is 1972297. The next prime is 1972307. The reversal of 1972306 is 6032791.

It is not an unprimeable number, because it can be changed into a prime (1972307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (223776).

2^1972306 is an apocalyptic number.

1972306 is a deficient number, since it is larger than the sum of its proper divisors (1608110).

1972306 is a wasteful number, since it uses less digits than its factorization.

1972306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1972306 is about 1404.3881229916. The cubic root of 1972306 is about 125.4078624053.

It can be divided in two parts, 1972 and 306, that added together give a triangular number (2278 = T₆₇).

The spelling of 1972306 in words is "one million, nine hundred seventy-two thousand, three hundred six".