1405351140 has 48 divisors (see below), whose sum is σ = 3944445120. Its totient is φ = 373859200.

The previous prime is 1405351097. The next prime is 1405351147. The reversal of 1405351140 is 411535041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1405351140.

It is not an unprimeable number, because it can be changed into a prime (1405351147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2811 + ... + 53090.

It is an arithmetic number, because the mean of its divisors is an integer number (82175940).

Almost surely, 2^1405351140 is an apocalyptic number.

1405351140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1405351140 is an abundant number, since it is smaller than the sum of its proper divisors (2539093980).

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

1405351140 is a wasteful number, since it uses less digits than its factorization.

1405351140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56332 (or 56330 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1405351140 is about 37488.0132842486. The cubic root of 1405351140 is about 1120.1124302525.

Adding to 1405351140 its reverse (411535041), we get a palindrome (1816886181).

The spelling of 1405351140 in words is "one billion, four hundred five million, three hundred fifty-one thousand, one hundred forty".