2235662421 has 4 divisors (see below), whose sum is σ = 2980883232. Its totient is φ = 1490441612.

The previous prime is 2235662393. The next prime is 2235662431. The reversal of 2235662421 is 1242665322.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2235662421 - 2⁵ = 2235662389 is a prime.

It is a super-3 number, since 3×2235662421³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235662431) 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, 372610401 + ... + 372610406.

It is an arithmetic number, because the mean of its divisors is an integer number (745220808).

Almost surely, 2^2235662421 is an apocalyptic number.

It is an amenable number.

2235662421 is a deficient number, since it is larger than the sum of its proper divisors (745220811).

2235662421 is an equidigital number, since it uses as much as digits as its factorization.

2235662421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745220810.

The product of its digits is 34560, while the sum is 33.

The square root of 2235662421 is about 47282.7920178155. The cubic root of 2235662421 is about 1307.5814242719.

The spelling of 2235662421 in words is "two billion, two hundred thirty-five million, six hundred sixty-two thousand, four hundred twenty-one".