1405105500 has 48 divisors (see below), whose sum is σ = 4091671584. Its totient is φ = 374694400.

The previous prime is 1405105483. The next prime is 1405105511. The reversal of 1405105500 is 55015041.

It is a super-2 number, since 2×1405105500² = 3948642932260500000, which contains 22 as substring.

It is a congruent number.

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, 466869 + ... + 469868.

It is an arithmetic number, because the mean of its divisors is an integer number (85243158).

Almost surely, 2^1405105500 is an apocalyptic number.

1405105500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1405105500 is an abundant number, since it is smaller than the sum of its proper divisors (2686566084).

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

1405105500 is a wasteful number, since it uses less digits than its factorization.

1405105500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936759 (or 936747 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1405105500 is about 37484.7368938345. The cubic root of 1405105500 is about 1120.0471653182.

The spelling of 1405105500 in words is "one billion, four hundred five million, one hundred five thousand, five hundred".