1040040747 has 6 divisors (see below), whose sum is σ = 1502281092. Its totient is φ = 693360492.

The previous prime is 1040040721. The next prime is 1040040761. The reversal of 1040040747 is 7470400401.

It is not a de Polignac number, because 1040040747 - 2¹⁵ = 1040007979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040040747.

It is not an unprimeable number, because it can be changed into a prime (1040040787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57780033 + ... + 57780050.

It is an arithmetic number, because the mean of its divisors is an integer number (250380182).

Almost surely, 2^1040040747 is an apocalyptic number.

1040040747 is a deficient number, since it is larger than the sum of its proper divisors (462240345).

1040040747 is a wasteful number, since it uses less digits than its factorization.

1040040747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115560089 (or 115560086 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 1040040747 is about 32249.6627424226. The cubic root of 1040040747 is about 1013.1726354442.

The spelling of 1040040747 in words is "one billion, forty million, forty thousand, seven hundred forty-seven".