88329540 has 144 divisors (see below), whose sum is σ = 277433856. Its totient is φ = 20966400.

The previous prime is 88329529. The next prime is 88329583. The reversal of 88329540 is 4592388.

It is a happy number.

It is a super-2 number, since 2×88329540² = 15604215273223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 314200 + ... + 314480.

It is an arithmetic number, because the mean of its divisors is an integer number (1926624).

Almost surely, 2^88329540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88329540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138716928).

88329540 is an abundant number, since it is smaller than the sum of its proper divisors (189104316).

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

88329540 is a wasteful number, since it uses less digits than its factorization.

88329540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 88329540 is about 9398.3796475776. The cubic root of 88329540 is about 445.3505464938.

The spelling of 88329540 in words is "eighty-eight million, three hundred twenty-nine thousand, five hundred forty".