1940290523 has 2 divisors, whose sum is σ = 1940290524. Its totient is φ = 1940290522.

The previous prime is 1940290493. The next prime is 1940290577. The reversal of 1940290523 is 3250920491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1940290523 - 2⁶ = 1940290459 is a prime.

It is a super-2 number, since 2×1940290523² = 7529454627287227058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1940250523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970145261 + 970145262.

It is an arithmetic number, because the mean of its divisors is an integer number (970145262).

Almost surely, 2^1940290523 is an apocalyptic number.

1940290523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940290523 is an equidigital number, since it uses as much as digits as its factorization.

1940290523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1940290523 is about 44048.7289600960. The cubic root of 1940290523 is about 1247.2559588384.

The spelling of 1940290523 in words is "one billion, nine hundred forty million, two hundred ninety thousand, five hundred twenty-three".