440152231 has 2 divisors, whose sum is σ = 440152232. Its totient is φ = 440152230.

The previous prime is 440152211. The next prime is 440152267. The reversal of 440152231 is 132251044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440152231 - 2⁷ = 440152103 is a prime.

It is a super-2 number, since 2×440152231² = 387467972908554722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440152211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220076115 + 220076116.

It is an arithmetic number, because the mean of its divisors is an integer number (220076116).

Almost surely, 2^440152231 is an apocalyptic number.

440152231 is a deficient number, since it is larger than the sum of its proper divisors (1).

440152231 is an equidigital number, since it uses as much as digits as its factorization.

440152231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 440152231 is about 20979.8053136820. The cubic root of 440152231 is about 760.6781982891.

The spelling of 440152231 in words is "four hundred forty million, one hundred fifty-two thousand, two hundred thirty-one".