88743440 has 40 divisors (see below), whose sum is σ = 208241880. Its totient is φ = 35168256.

The previous prime is 88743439. The next prime is 88743467. The reversal of 88743440 is 4434788.

It can be written as a sum of positive squares in 4 ways, for example, as 20647936 + 68095504 = 4544^2 + 8252^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 88743394 and 88743403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3632 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (5206047).

Almost surely, 2^88743440 is an apocalyptic number.

88743440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88743440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104120940).

88743440 is an abundant number, since it is smaller than the sum of its proper divisors (119498440).

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

88743440 is a wasteful number, since it uses less digits than its factorization.

88743440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10299 (or 10293 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 88743440 is about 9420.3736656249. The cubic root of 88743440 is about 446.0450798006.

The spelling of 88743440 in words is "eighty-eight million, seven hundred forty-three thousand, four hundred forty".