1040401433 has 4 divisors (see below), whose sum is σ = 1045792308. Its totient is φ = 1035010560.

The previous prime is 1040401423. The next prime is 1040401463. The reversal of 1040401433 is 3341040401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 740003209 + 300398224 = 27203^2 + 17332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040401433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040401423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695148 + ... + 2695533.

It is an arithmetic number, because the mean of its divisors is an integer number (261448077).

Almost surely, 2^1040401433 is an apocalyptic number.

It is an amenable number.

1040401433 is a deficient number, since it is larger than the sum of its proper divisors (5390875).

1040401433 is an equidigital number, since it uses as much as digits as its factorization.

1040401433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390874.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1040401433 is about 32255.2543471602. The cubic root of 1040401433 is about 1013.2897446216.

Adding to 1040401433 its reverse (3341040401), we get a palindrome (4381441834).

The spelling of 1040401433 in words is "one billion, forty million, four hundred one thousand, four hundred thirty-three".