88491642 has 16 divisors (see below), whose sum is σ = 181767072. Its totient is φ = 28699920.

The previous prime is 88491619. The next prime is 88491643. The reversal of 88491642 is 24619488.

It is a junction number, because it is equal to n+sod(n) for n = 88491594 and 88491603.

It is not an unprimeable number, because it can be changed into a prime (88491643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199084 + ... + 199527.

It is an arithmetic number, because the mean of its divisors is an integer number (11360442).

Almost surely, 2^88491642 is an apocalyptic number.

88491642 is an abundant number, since it is smaller than the sum of its proper divisors (93275430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88491642 is a wasteful number, since it uses less digits than its factorization.

88491642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398653.

The product of its digits is 110592, while the sum is 42.

The square root of 88491642 is about 9406.9996279366. Note that the first 3 decimals coincide. The cubic root of 88491642 is about 445.6228151557.

The spelling of 88491642 in words is "eighty-eight million, four hundred ninety-one thousand, six hundred forty-two".