1016431405 has 8 divisors (see below), whose sum is σ = 1330601184. Its totient is φ = 739222800.

The previous prime is 1016431397. The next prime is 1016431417. The reversal of 1016431405 is 5041346101.

1016431405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1016431405 - 2³ = 1016431397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1016431405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9240231 + ... + 9240340.

It is an arithmetic number, because the mean of its divisors is an integer number (166325148).

Almost surely, 2^1016431405 is an apocalyptic number.

It is an amenable number.

1016431405 is a deficient number, since it is larger than the sum of its proper divisors (314169779).

1016431405 is a wasteful number, since it uses less digits than its factorization.

1016431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18480587.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1016431405 is about 31881.5213721052. The cubic root of 1016431405 is about 1005.4474068758.

Adding to 1016431405 its reverse (5041346101), we get a palindrome (6057777506).

The spelling of 1016431405 in words is "one billion, sixteen million, four hundred thirty-one thousand, four hundred five".