905440413 has 4 divisors (see below), whose sum is σ = 1207253888. Its totient is φ = 603626940.

The previous prime is 905440391. The next prime is 905440423. The reversal of 905440413 is 314044509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 905440413 - 2⁵ = 905440381 is a prime.

It is a super-2 number, since 2×905440413² = 1639644682987221138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905440423) 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, 150906733 + ... + 150906738.

It is an arithmetic number, because the mean of its divisors is an integer number (301813472).

Almost surely, 2^905440413 is an apocalyptic number.

It is an amenable number.

905440413 is a deficient number, since it is larger than the sum of its proper divisors (301813475).

905440413 is a wasteful number, since it uses less digits than its factorization.

905440413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301813474.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 905440413 is about 30090.5369343918. The cubic root of 905440413 is about 967.4309077382.

The spelling of 905440413 in words is "nine hundred five million, four hundred forty thousand, four hundred thirteen".