1405225641 has 8 divisors (see below), whose sum is σ = 1955096640. Its totient is φ = 896085872.

The previous prime is 1405225609. The next prime is 1405225649. The reversal of 1405225641 is 1465225041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1405225641 - 2⁵ = 1405225609 is a prime.

It is a super-4 number, since 4×1405225641⁴ (a number of 38 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1405225599 and 1405225608.

It is not an unprimeable number, because it can be changed into a prime (1405225649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10182726 + ... + 10182863.

It is an arithmetic number, because the mean of its divisors is an integer number (244387080).

Almost surely, 2^1405225641 is an apocalyptic number.

It is an amenable number.

1405225641 is a deficient number, since it is larger than the sum of its proper divisors (549870999).

1405225641 is a wasteful number, since it uses less digits than its factorization.

1405225641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20365615.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1405225641 is about 37486.3393918371. The cubic root of 1405225641 is about 1120.0790869429.

It can be divided in two parts, 14052 and 25641, that added together give a palindrome (39693).

The spelling of 1405225641 in words is "one billion, four hundred five million, two hundred twenty-five thousand, six hundred forty-one".