5405408381 has 4 divisors (see below), whose sum is σ = 5405979264. Its totient is φ = 5404837500.

The previous prime is 5405408299. The next prime is 5405408413. The reversal of 5405408381 is 1838045045.

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 a cyclic number.

It is not a de Polignac number, because 5405408381 - 2¹⁴ = 5405391997 is a prime.

It is a super-2 number, since 2×5405408381² = 58436879530770082322, 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 (5405401381) 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, 270995 + ... + 290256.

It is an arithmetic number, because the mean of its divisors is an integer number (1351494816).

Almost surely, 2^5405408381 is an apocalyptic number.

It is an amenable number.

5405408381 is a deficient number, since it is larger than the sum of its proper divisors (570883).

5405408381 is an equidigital number, since it uses as much as digits as its factorization.

5405408381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570882.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 5405408381 is about 73521.4824456091. The cubic root of 5405408381 is about 1754.9961586808.

The spelling of 5405408381 in words is "five billion, four hundred five million, four hundred eight thousand, three hundred eighty-one".