88340640 has 48 divisors (see below), whose sum is σ = 278274528. Its totient is φ = 23557376.

The previous prime is 88340611. The next prime is 88340647. The reversal of 88340640 is 4604388.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (88340647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91542 + ... + 92501.

It is an arithmetic number, because the mean of its divisors is an integer number (5797386).

Almost surely, 2^88340640 is an apocalyptic number.

88340640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88340640 is an abundant number, since it is smaller than the sum of its proper divisors (189933888).

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

88340640 is a wasteful number, since it uses less digits than its factorization.

88340640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184061 (or 184053 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 88340640 is about 9398.9701563522. The cubic root of 88340640 is about 445.3692008195.

The spelling of 88340640 in words is "eighty-eight million, three hundred forty thousand, six hundred forty".