234430221477 has 16 divisors (see below), whose sum is σ = 313047358848. Its totient is φ = 156050041920.

The previous prime is 234430221461. The next prime is 234430221497. The reversal of 234430221477 is 774122034432.

It is not a de Polignac number, because 234430221477 - 2⁴ = 234430221461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234430221407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14515827 + ... + 14531967.

It is an arithmetic number, because the mean of its divisors is an integer number (19565459928).

Almost surely, 2^234430221477 is an apocalyptic number.

It is an amenable number.

234430221477 is a deficient number, since it is larger than the sum of its proper divisors (78617137371).

234430221477 is a wasteful number, since it uses less digits than its factorization.

234430221477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23180.

The product of its (nonzero) digits is 225792, while the sum is 39.

The spelling of 234430221477 in words is "two hundred thirty-four billion, four hundred thirty million, two hundred twenty-one thousand, four hundred seventy-seven".