420013433 has 4 divisors (see below), whose sum is σ = 480015360. Its totient is φ = 360011508.

The previous prime is 420013427. The next prime is 420013439. The reversal of 420013433 is 334310024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (420013427) and next prime (420013439).

It is a cyclic number.

It is not a de Polignac number, because 420013433 - 2⁴ = 420013417 is a prime.

It is a super-2 number, since 2×420013433² = 352822567800890978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420013439) 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, 30000953 + ... + 30000966.

It is an arithmetic number, because the mean of its divisors is an integer number (120003840).

Almost surely, 2^420013433 is an apocalyptic number.

It is an amenable number.

420013433 is a deficient number, since it is larger than the sum of its proper divisors (60001927).

420013433 is an equidigital number, since it uses as much as digits as its factorization.

420013433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60001926.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 420013433 is about 20494.2292609407. The cubic root of 420013433 is about 748.8952226068.

Adding to 420013433 its reverse (334310024), we get a palindrome (754323457).

The spelling of 420013433 in words is "four hundred twenty million, thirteen thousand, four hundred thirty-three".