1940929 has 2 divisors, whose sum is σ = 1940930. Its totient is φ = 1940928.

The previous prime is 1940903. The next prime is 1940957. The reversal of 1940929 is 9290491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 859329 = 1040^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940929 - 2¹⁹ = 1416641 is a prime.

1940929 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1940894 and 1940903.

It is not a weakly prime, because it can be changed into another prime (1949929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970464 + 970465.

It is an arithmetic number, because the mean of its divisors is an integer number (970465).

2^1940929 is an apocalyptic number.

It is an amenable number.

1940929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940929 is an equidigital number, since it uses as much as digits as its factorization.

1940929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 1940929 is about 1393.1722793682. The cubic root of 1940929 is about 124.7392752255.

The spelling of 1940929 in words is "one million, nine hundred forty thousand, nine hundred twenty-nine".