405023353 has 8 divisors (see below), whose sum is σ = 483009408. Its totient is φ = 332068704.

The previous prime is 405023341. The next prime is 405023357. The reversal of 405023353 is 353320504.

It is a happy number.

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 405023353 - 2¹³ = 405015161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405023357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257676 + ... + 1257997.

It is an arithmetic number, because the mean of its divisors is an integer number (60376176).

Almost surely, 2^405023353 is an apocalyptic number.

It is an amenable number.

405023353 is a deficient number, since it is larger than the sum of its proper divisors (77986055).

405023353 is a wasteful number, since it uses less digits than its factorization.

405023353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515703.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 405023353 is about 20125.1919990841. The cubic root of 405023353 is about 739.8778426309.

Adding to 405023353 its reverse (353320504), we get a palindrome (758343857).

The spelling of 405023353 in words is "four hundred five million, twenty-three thousand, three hundred fifty-three".