405042351 has 16 divisors (see below), whose sum is σ = 644043264. Its totient is φ = 221389344.

The previous prime is 405042347. The next prime is 405042353. The reversal of 405042351 is 153240504.

It is not a de Polignac number, because 405042351 - 2² = 405042347 is a prime.

It is a super-2 number, since 2×405042351² = 328118612207214402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405042353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418816 + ... + 419781.

It is an arithmetic number, because the mean of its divisors is an integer number (40252704).

Almost surely, 2^405042351 is an apocalyptic number.

405042351 is a deficient number, since it is larger than the sum of its proper divisors (239000913).

405042351 is a wasteful number, since it uses less digits than its factorization.

405042351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838630.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 405042351 is about 20125.6639890464. The cubic root of 405042351 is about 739.8894106713.

Adding to 405042351 its reverse (153240504), we get a palindrome (558282855).

The spelling of 405042351 in words is "four hundred five million, forty-two thousand, three hundred fifty-one".