469662421 has 8 divisors (see below), whose sum is σ = 481975704. Its totient is φ = 457390080.

The previous prime is 469662419. The next prime is 469662437. The reversal of 469662421 is 124266964.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34939921 + 434722500 = 5911^2 + 20850^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 469662421 - 2¹ = 469662419 is a prime.

It is a super-3 number, since 3×469662421³ (a number of 27 digits) contains 333 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 (469662481) 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, 13731 + ... + 33583.

It is an arithmetic number, because the mean of its divisors is an integer number (60246963).

Almost surely, 2^469662421 is an apocalyptic number.

469662421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

469662421 is a deficient number, since it is larger than the sum of its proper divisors (12313283).

469662421 is a wasteful number, since it uses less digits than its factorization.

469662421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20471.

The product of its digits is 124416, while the sum is 40.

The square root of 469662421 is about 21671.6963110874. The cubic root of 469662421 is about 777.3118183407.

The spelling of 469662421 in words is "four hundred sixty-nine million, six hundred sixty-two thousand, four hundred twenty-one".