1945238 has 16 divisors (see below), whose sum is σ = 3038784. Its totient is φ = 933120.

The previous prime is 1945199. The next prime is 1945243. The reversal of 1945238 is 8325491.

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 in 7 ways as a sum of consecutive naturals, for example, 7043 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (189924).

2^1945238 is an apocalyptic number.

1945238 is a deficient number, since it is larger than the sum of its proper divisors (1093546).

1945238 is a wasteful number, since it uses less digits than its factorization.

1945238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its digits is 8640, while the sum is 32.

The square root of 1945238 is about 1394.7178926220. The cubic root of 1945238 is about 124.8315170099.

The spelling of 1945238 in words is "one million, nine hundred forty-five thousand, two hundred thirty-eight".