418625421 has 8 divisors (see below), whose sum is σ = 558361824. Its totient is φ = 278986320.

The previous prime is 418625399. The next prime is 418625489. The reversal of 418625421 is 124526814.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 418625421 - 2¹⁵ = 418592653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418625021) 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, 13611 + ... + 31976.

It is an arithmetic number, because the mean of its divisors is an integer number (69795228).

Almost surely, 2^418625421 is an apocalyptic number.

It is an amenable number.

418625421 is a deficient number, since it is larger than the sum of its proper divisors (139736403).

418625421 is a wasteful number, since it uses less digits than its factorization.

418625421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48651.

The product of its digits is 15360, while the sum is 33.

The square root of 418625421 is about 20460.3377538104. The cubic root of 418625421 is about 748.0693579819.

The spelling of 418625421 in words is "four hundred eighteen million, six hundred twenty-five thousand, four hundred twenty-one".