1440406413 has 24 divisors (see below), whose sum is σ = 2274045696. Its totient is φ = 874627200.

The previous prime is 1440406403. The next prime is 1440406417. The reversal of 1440406413 is 3146040441.

1440406413 is a `hidden beast` number, since 14 + 4 + 0 + 4 + 0 + 641 + 3 = 666.

It is not a de Polignac number, because 1440406413 - 2⁵ = 1440406381 is a prime.

It is a super-2 number, since 2×1440406413² = 4149541269223053138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440406417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147103 + ... + 156588.

It is an arithmetic number, because the mean of its divisors is an integer number (94751904).

Almost surely, 2^1440406413 is an apocalyptic number.

It is an amenable number.

1440406413 is a deficient number, since it is larger than the sum of its proper divisors (833639283).

1440406413 is a wasteful number, since it uses less digits than its factorization.

1440406413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303745 (or 303742 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1440406413 is about 37952.6865057008. The cubic root of 1440406413 is about 1129.3494605743.

Adding to 1440406413 its reverse (3146040441), we get a palindrome (4586446854).

The spelling of 1440406413 in words is "one billion, four hundred forty million, four hundred six thousand, four hundred thirteen".