5405658 has 32 divisors (see below), whose sum is σ = 11439360. Its totient is φ = 1700160.

The previous prime is 5405641. The next prime is 5405669. The reversal of 5405658 is 8565045.

It is a super-2 number, since 2×5405658² = 58442276825928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7848 + ... + 8508.

It is an arithmetic number, because the mean of its divisors is an integer number (357480).

Almost surely, 2^5405658 is an apocalyptic number.

5405658 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5405658 is an abundant number, since it is smaller than the sum of its proper divisors (6033702).

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

5405658 is a wasteful number, since it uses less digits than its factorization.

5405658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 5405658 is about 2325.0070967634. The cubic root of 5405658 is about 175.5023173207.

Subtracting from 5405658 its sum of digits (33), we obtain a square (5405625 = 2325²).

The spelling of 5405658 in words is "five million, four hundred five thousand, six hundred fifty-eight".