421416554 has 8 divisors (see below), whose sum is σ = 680749860. Its totient is φ = 194499936.

The previous prime is 421416497. The next prime is 421416559. The reversal of 421416554 is 455614124.

It can be written as a sum of positive squares in 2 ways, for example, as 409131529 + 12285025 = 20227^2 + 3505^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 421416554.

It is not an unprimeable number, because it can be changed into a prime (421416559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8104139 + ... + 8104190.

Almost surely, 2^421416554 is an apocalyptic number.

421416554 is a deficient number, since it is larger than the sum of its proper divisors (259333306).

421416554 is a wasteful number, since it uses less digits than its factorization.

421416554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16208344.

The product of its digits is 19200, while the sum is 32.

The square root of 421416554 is about 20528.4328188978. The cubic root of 421416554 is about 749.7282298295.

The spelling of 421416554 in words is "four hundred twenty-one million, four hundred sixteen thousand, five hundred fifty-four".