1940364290 has 16 divisors (see below), whose sum is σ = 3493617912. Its totient is φ = 775931904.

The previous prime is 1940364269. The next prime is 1940364317. The reversal of 1940364290 is 924630491.

It can be written as a sum of positive squares in 4 ways, for example, as 1753850641 + 186513649 = 41879^2 + 13657^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14402 + ... + 63938.

Almost surely, 2^1940364290 is an apocalyptic number.

1940364290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1940364290 is a deficient number, since it is larger than the sum of its proper divisors (1553253622).

1940364290 is a wasteful number, since it uses less digits than its factorization.

1940364290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53461.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1940364290 is about 44049.5662861736. The cubic root of 1940364290 is about 1247.2717649188.

The spelling of 1940364290 in words is "one billion, nine hundred forty million, three hundred sixty-four thousand, two hundred ninety".