1011944473 has 8 divisors (see below), whose sum is σ = 1047300480. Its totient is φ = 976619280.

The previous prime is 1011944471. The next prime is 1011944497. The reversal of 1011944473 is 3744491101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011944473 - 2¹ = 1011944471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011944471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73938 + ... + 86548.

It is an arithmetic number, because the mean of its divisors is an integer number (130912560).

Almost surely, 2^1011944473 is an apocalyptic number.

It is an amenable number.

1011944473 is a deficient number, since it is larger than the sum of its proper divisors (35356007).

1011944473 is a wasteful number, since it uses less digits than its factorization.

1011944473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15407.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1011944473 is about 31811.0746910569. The cubic root of 1011944473 is about 1003.9657430918.

The spelling of 1011944473 in words is "one billion, eleven million, nine hundred forty-four thousand, four hundred seventy-three".