5405631 has 24 divisors (see below), whose sum is σ = 9149184. Its totient is φ = 2807280.

The previous prime is 5405599. The next prime is 5405641. The reversal of 5405631 is 1365045.

It is not a de Polignac number, because 5405631 - 2⁵ = 5405599 is a prime.

It is a super-2 number, since 2×5405631² = 58441693016322, which contains 22 as substring.

5405631 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (381216).

Almost surely, 2^5405631 is an apocalyptic number.

5405631 is a deficient number, since it is larger than the sum of its proper divisors (3743553).

5405631 is a wasteful number, since it uses less digits than its factorization.

5405631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371 (or 3364 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 5405631 is about 2325.0012903222. The cubic root of 5405631 is about 175.5020251225.

The spelling of 5405631 in words is "five million, four hundred five thousand, six hundred thirty-one".