420014431 has 8 divisors (see below), whose sum is σ = 438497280. Its totient is φ = 401550072.

The previous prime is 420014429. The next prime is 420014449. The reversal of 420014431 is 134410024.

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 420014431 - 2¹ = 420014429 is a prime.

It is a super-2 number, since 2×420014431² = 352824244496507522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420014399 and 420014408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420014401) 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, 63046 + ... + 69388.

It is an arithmetic number, because the mean of its divisors is an integer number (54812160).

Almost surely, 2^420014431 is an apocalyptic number.

420014431 is a deficient number, since it is larger than the sum of its proper divisors (18482849).

420014431 is a wasteful number, since it uses less digits than its factorization.

420014431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420014431 is about 20494.2536092437. The cubic root of 420014431 is about 748.8958157599.

Adding to 420014431 its reverse (134410024), we get a palindrome (554424455).

The spelling of 420014431 in words is "four hundred twenty million, fourteen thousand, four hundred thirty-one".