1010043405 has 128 divisors (see below), whose sum is σ = 2128896000. Its totient is φ = 444787200.

The previous prime is 1010043341. The next prime is 1010043409. The reversal of 1010043405 is 5043400101.

It is a happy number.

It is not a de Polignac number, because 1010043405 - 2⁶ = 1010043341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010043409) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5075496 + ... + 5075694.

It is an arithmetic number, because the mean of its divisors is an integer number (16632000).

Almost surely, 2^1010043405 is an apocalyptic number.

1010043405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1010043405 is an abundant number, since it is smaller than the sum of its proper divisors (1118852595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010043405 is a wasteful number, since it uses less digits than its factorization.

1010043405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1010043405 is about 31781.1800441708. The cubic root of 1010043405 is about 1003.3366560107.

Adding to 1010043405 its reverse (5043400101), we get a palindrome (6053443506).

The spelling of 1010043405 in words is "one billion, ten million, forty-three thousand, four hundred five".