88138734 has 16 divisors (see below), whose sum is σ = 180377472. Its totient is φ = 28696248.

The previous prime is 88138733. The next prime is 88138751. The reversal of 88138734 is 43783188.

It is a super-2 number, since 2×88138734² = 15536872862245512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88138733) 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, 170554 + ... + 171069.

It is an arithmetic number, because the mean of its divisors is an integer number (11273592).

Almost surely, 2^88138734 is an apocalyptic number.

88138734 is an abundant number, since it is smaller than the sum of its proper divisors (92238738).

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

88138734 is a wasteful number, since it uses less digits than its factorization.

88138734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341671.

The product of its digits is 129024, while the sum is 42.

The square root of 88138734 is about 9388.2231545698. The cubic root of 88138734 is about 445.0296390644.

The spelling of 88138734 in words is "eighty-eight million, one hundred thirty-eight thousand, seven hundred thirty-four".