1405400046 has 64 divisors (see below), whose sum is σ = 2969809920. Its totient is φ = 442915200.

The previous prime is 1405400041. The next prime is 1405400053. The reversal of 1405400046 is 6400045041.

It is a junction number, because it is equal to n+sod(n) for n = 1405399989 and 1405400025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405400041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079596 + ... + 1080896.

It is an arithmetic number, because the mean of its divisors is an integer number (46403280).

Almost surely, 2^1405400046 is an apocalyptic number.

1405400046 is an abundant number, since it is smaller than the sum of its proper divisors (1564409874).

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

1405400046 is a wasteful number, since it uses less digits than its factorization.

1405400046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1405400046 is about 37488.6655670751. The cubic root of 1405400046 is about 1120.1254233476.

Adding to 1405400046 its reverse (6400045041), we get a palindrome (7805445087).

The spelling of 1405400046 in words is "one billion, four hundred five million, four hundred thousand, forty-six".