415420451 has 4 divisors (see below), whose sum is σ = 424259232. Its totient is φ = 406581672.

The previous prime is 415420433. The next prime is 415420477. The reversal of 415420451 is 154024514.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 415420451 - 2²² = 411226147 is a prime.

It is a super-2 number, since 2×415420451² = 345148302218086802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 415420451.

It is not an unprimeable number, because it can be changed into a prime (415420751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4419320 + ... + 4419413.

It is an arithmetic number, because the mean of its divisors is an integer number (106064808).

Almost surely, 2^415420451 is an apocalyptic number.

415420451 is a deficient number, since it is larger than the sum of its proper divisors (8838781).

415420451 is an equidigital number, since it uses as much as digits as its factorization.

415420451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838780.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 415420451 is about 20381.8657389357. The cubic root of 415420451 is about 746.1554078978.

Adding to 415420451 its reverse (154024514), we get a palindrome (569444965).

The spelling of 415420451 in words is "four hundred fifteen million, four hundred twenty thousand, four hundred fifty-one".