842538231 has 48 divisors (see below), whose sum is σ = 1302912000. Its totient is φ = 523486656.

The previous prime is 842538227. The next prime is 842538253. The reversal of 842538231 is 132835248.

It is not a de Polignac number, because 842538231 - 2² = 842538227 is a prime.

It is a super-2 number, since 2×842538231² = 1419741341393218722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842538271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1819506 + ... + 1819968.

It is an arithmetic number, because the mean of its divisors is an integer number (27144000).

Almost surely, 2^842538231 is an apocalyptic number.

842538231 is a deficient number, since it is larger than the sum of its proper divisors (460373769).

842538231 is a wasteful number, since it uses less digits than its factorization.

842538231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 842538231 is about 29026.5091080550. The cubic root of 842538231 is about 944.4882052767.

It can be divided in two parts, 8425 and 38231, that added together give a 6-th power (46656 = 6⁶).

The spelling of 842538231 in words is "eight hundred forty-two million, five hundred thirty-eight thousand, two hundred thirty-one".