405641357 has 8 divisors (see below), whose sum is σ = 457777440. Its totient is φ = 356048560.

The previous prime is 405641339. The next prime is 405641359. The reversal of 405641357 is 753146504.

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 405641357 - 2¹⁸ = 405379213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405641359) 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, 635483 + ... + 636120.

It is an arithmetic number, because the mean of its divisors is an integer number (57222180).

Almost surely, 2^405641357 is an apocalyptic number.

It is an amenable number.

405641357 is a deficient number, since it is larger than the sum of its proper divisors (52136083).

405641357 is a wasteful number, since it uses less digits than its factorization.

405641357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271643.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 405641357 is about 20140.5401367491. The cubic root of 405641357 is about 740.2539650581.

The spelling of 405641357 in words is "four hundred five million, six hundred forty-one thousand, three hundred fifty-seven".