421613235 has 16 divisors (see below), whose sum is σ = 749534880. Its totient is φ = 224860320.

The previous prime is 421613221. The next prime is 421613239. The reversal of 421613235 is 532316124.

421613235 is a `hidden beast` number, since 4 + 21 + 613 + 23 + 5 = 666.

It is not a de Polignac number, because 421613235 - 2⁴ = 421613219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 421613199 and 421613208.

It is not an unprimeable number, because it can be changed into a prime (421613239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561396 + ... + 1561665.

It is an arithmetic number, because the mean of its divisors is an integer number (46845930).

Almost surely, 2^421613235 is an apocalyptic number.

421613235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421613235 is a deficient number, since it is larger than the sum of its proper divisors (327921645).

421613235 is a wasteful number, since it uses less digits than its factorization.

421613235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123075 (or 3123069 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 421613235 is about 20533.2227134466. Note that the first 3 decimals coincide. The cubic root of 421613235 is about 749.8448479060.

Adding to 421613235 its reverse (532316124), we get a palindrome (953929359).

The spelling of 421613235 in words is "four hundred twenty-one million, six hundred thirteen thousand, two hundred thirty-five".