1940066354 has 4 divisors (see below), whose sum is σ = 2910099534. Its totient is φ = 970033176.

The previous prime is 1940066341. The next prime is 1940066357. The reversal of 1940066354 is 4536600491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1939962025 + 104329 = 44045^2 + 323^2 .

It is not an unprimeable number, because it can be changed into a prime (1940066357) by changing a digit.

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 as a sum of consecutive naturals, namely, 485016587 + ... + 485016590.

Almost surely, 2^1940066354 is an apocalyptic number.

1940066354 is a deficient number, since it is larger than the sum of its proper divisors (970033180).

1940066354 is an equidigital number, since it uses as much as digits as its factorization.

1940066354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970033179.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1940066354 is about 44046.1843296329. The cubic root of 1940066354 is about 1247.2079236110.

The spelling of 1940066354 in words is "one billion, nine hundred forty million, sixty-six thousand, three hundred fifty-four".