405225739 has 8 divisors (see below), whose sum is σ = 417609360. Its totient is φ = 392917536.

The previous prime is 405225713. The next prime is 405225773. The reversal of 405225739 is 937522504.

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 405225739 - 2¹¹ = 405223691 is a prime.

It is a super-2 number, since 2×405225739² = 328415799096192242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405225698 and 405225707.

It is not an unprimeable number, because it can be changed into a prime (405225539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7849 + ... + 29530.

It is an arithmetic number, because the mean of its divisors is an integer number (52201170).

Almost surely, 2^405225739 is an apocalyptic number.

405225739 is a deficient number, since it is larger than the sum of its proper divisors (12383621).

405225739 is a wasteful number, since it uses less digits than its factorization.

405225739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37709.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 405225739 is about 20130.2195467412. The cubic root of 405225739 is about 740.0010585570.

It can be divided in two parts, 4052 and 25739, that added together give a cube (29791 = 31³).

The spelling of 405225739 in words is "four hundred five million, two hundred twenty-five thousand, seven hundred thirty-nine".