1940283949 has 2 divisors, whose sum is σ = 1940283950. Its totient is φ = 1940283948.

The previous prime is 1940283931. The next prime is 1940284019. The reversal of 1940283949 is 9493820491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1727649225 + 212634724 = 41565^2 + 14582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940283949 - 2²¹ = 1938186797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940284949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970141974 + 970141975.

It is an arithmetic number, because the mean of its divisors is an integer number (970141975).

Almost surely, 2^1940283949 is an apocalyptic number.

It is an amenable number.

1940283949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940283949 is an equidigital number, since it uses as much as digits as its factorization.

1940283949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 1940283949 is about 44048.6543381293. The cubic root of 1940283949 is about 1247.2545502057.

The spelling of 1940283949 in words is "one billion, nine hundred forty million, two hundred eighty-three thousand, nine hundred forty-nine".