1405541412 has 36 divisors (see below), whose sum is σ = 3875888016. Its totient is φ = 425921520.

The previous prime is 1405541411. The next prime is 1405541437. The reversal of 1405541412 is 2141455041.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1405541411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1774278 + ... + 1775069.

It is an arithmetic number, because the mean of its divisors is an integer number (107663556).

Almost surely, 2^1405541412 is an apocalyptic number.

1405541412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1405541412 is an abundant number, since it is smaller than the sum of its proper divisors (2470346604).

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

1405541412 is a wasteful number, since it uses less digits than its factorization.

1405541412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549368 (or 3549363 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1405541412 is about 37490.5509695443. The cubic root of 1405541412 is about 1120.1629790462.

Adding to 1405541412 its reverse (2141455041), we get a palindrome (3546996453).

The spelling of 1405541412 in words is "one billion, four hundred five million, five hundred forty-one thousand, four hundred twelve".