1940154273 has 12 divisors (see below), whose sum is σ = 2807178660. Its totient is φ = 1291251456.

The previous prime is 1940154263. The next prime is 1940154283. The reversal of 1940154273 is 3724510491.

1940154273 is a `hidden beast` number, since 1 + 9 + 40 + 1 + 542 + 73 = 666.

It is an interprime number because it is at equal distance from previous prime (1940154263) and next prime (1940154283).

It can be written as a sum of positive squares in 2 ways, for example, as 834458769 + 1105695504 = 28887^2 + 33252^2 .

It is not a de Polignac number, because 1940154273 - 2⁵ = 1940154241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1940154233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176428 + ... + 187101.

It is an arithmetic number, because the mean of its divisors is an integer number (233931555).

Almost surely, 2^1940154273 is an apocalyptic number.

It is an amenable number.

1940154273 is a deficient number, since it is larger than the sum of its proper divisors (867024387).

1940154273 is a wasteful number, since it uses less digits than its factorization.

1940154273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364128 (or 364125 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1940154273 is about 44047.1823502934. The cubic root of 1940154273 is about 1247.2267634507.

The spelling of 1940154273 in words is "one billion, nine hundred forty million, one hundred fifty-four thousand, two hundred seventy-three".