420011403 has 8 divisors (see below), whose sum is σ = 640017408. Its totient is φ = 240006504.

The previous prime is 420011399. The next prime is 420011407. The reversal of 420011403 is 304110024.

It is an interprime number because it is at equal distance from previous prime (420011399) and next prime (420011407).

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

It is not a de Polignac number, because 420011403 - 2² = 420011399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420011407) 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, 10000251 + ... + 10000292.

It is an arithmetic number, because the mean of its divisors is an integer number (80002176).

Almost surely, 2^420011403 is an apocalyptic number.

420011403 is a deficient number, since it is larger than the sum of its proper divisors (220006005).

420011403 is a wasteful number, since it uses less digits than its factorization.

420011403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000553.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 420011403 is about 20494.1797347442. The cubic root of 420011403 is about 748.8940160900.

Adding to 420011403 its reverse (304110024), we get a palindrome (724121427).

The spelling of 420011403 in words is "four hundred twenty million, eleven thousand, four hundred three".