403215461 has 16 divisors (see below), whose sum is σ = 465481728. Its totient is φ = 345668400.

The previous prime is 403215437. The next prime is 403215487. The reversal of 403215461 is 164512304.

It is not a de Polignac number, because 403215461 - 2²² = 399021157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 403215461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403215161) 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, 6740 + ... + 29186.

It is an arithmetic number, because the mean of its divisors is an integer number (29092608).

Almost surely, 2^403215461 is an apocalyptic number.

It is an amenable number.

403215461 is a deficient number, since it is larger than the sum of its proper divisors (62266267).

403215461 is a wasteful number, since it uses less digits than its factorization.

403215461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22552.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 403215461 is about 20080.2256212424. The cubic root of 403215461 is about 738.7753428987.

Adding to 403215461 its reverse (164512304), we get a palindrome (567727765).

The spelling of 403215461 in words is "four hundred three million, two hundred fifteen thousand, four hundred sixty-one".