1940364291 has 32 divisors (see below), whose sum is σ = 2673062208. Its totient is φ = 1251461120.

The previous prime is 1940364269. The next prime is 1940364317. The reversal of 1940364291 is 1924630491.

It is a cyclic number.

It is not a de Polignac number, because 1940364291 - 2⁹ = 1940363779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1940364221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6120865 + ... + 6121181.

It is an arithmetic number, because the mean of its divisors is an integer number (83533194).

Almost surely, 2^1940364291 is an apocalyptic number.

1940364291 is a deficient number, since it is larger than the sum of its proper divisors (732697917).

1940364291 is a wasteful number, since it uses less digits than its factorization.

1940364291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1940364291 is about 44049.5662975244. The cubic root of 1940364291 is about 1247.2717651331.

The spelling of 1940364291 in words is "one billion, nine hundred forty million, three hundred sixty-four thousand, two hundred ninety-one".