1405342641 has 16 divisors (see below), whose sum is σ = 1919427840. Its totient is φ = 914123280.

The previous prime is 1405342607. The next prime is 1405342649. The reversal of 1405342641 is 1462435041.

It is not a de Polignac number, because 1405342641 - 2⁷ = 1405342513 is a prime.

It is a super-2 number, since 2×1405342641² = 3949975877225709762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1405342599 and 1405342608.

It is not an unprimeable number, because it can be changed into a prime (1405342649) 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, 126106 + ... + 136796.

It is an arithmetic number, because the mean of its divisors is an integer number (119964240).

Almost surely, 2^1405342641 is an apocalyptic number.

It is an amenable number.

1405342641 is a deficient number, since it is larger than the sum of its proper divisors (514085199).

1405342641 is a wasteful number, since it uses less digits than its factorization.

1405342641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1405342641 is about 37487.8999278434. The cubic root of 1405342641 is about 1120.1101722511.

Adding to 1405342641 its reverse (1462435041), we get a palindrome (2867777682).

The spelling of 1405342641 in words is "one billion, four hundred five million, three hundred forty-two thousand, six hundred forty-one".