405026461 has 4 divisors (see below), whose sum is σ = 462887392. Its totient is φ = 347165532.

The previous prime is 405026459. The next prime is 405026533. The reversal of 405026461 is 164620504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 405026461 - 2¹ = 405026459 is a prime.

It is a super-2 number, since 2×405026461² = 328092868220369042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405026431) 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 3 ways as a sum of consecutive naturals, for example, 28930455 + ... + 28930468.

It is an arithmetic number, because the mean of its divisors is an integer number (115721848).

Almost surely, 2^405026461 is an apocalyptic number.

It is an amenable number.

405026461 is a deficient number, since it is larger than the sum of its proper divisors (57860931).

405026461 is an equidigital number, since it uses as much as digits as its factorization.

405026461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57860930.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 405026461 is about 20125.2692155906. The cubic root of 405026461 is about 739.8797351427.

Adding to 405026461 its reverse (164620504), we get a palindrome (569646965).

The spelling of 405026461 in words is "four hundred five million, twenty-six thousand, four hundred sixty-one".