1940870475 has 36 divisors (see below), whose sum is σ = 3588466752. Its totient is φ = 1001736000.

The previous prime is 1940870447. The next prime is 1940870513. The reversal of 1940870475 is 5740780491.

It is a happy number.

It is not a de Polignac number, because 1940870475 - 2⁶ = 1940870411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1940870475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 132156 + ... + 146105.

It is an arithmetic number, because the mean of its divisors is an integer number (99679632).

Almost surely, 2^1940870475 is an apocalyptic number.

1940870475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1940870475 is a deficient number, since it is larger than the sum of its proper divisors (1647596277).

1940870475 is a wasteful number, since it uses less digits than its factorization.

1940870475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278308 (or 278300 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1940870475 is about 44055.3115412886. The cubic root of 1940870475 is about 1247.3802145485.

The spelling of 1940870475 in words is "one billion, nine hundred forty million, eight hundred seventy thousand, four hundred seventy-five".