40529538 has 64 divisors (see below), whose sum is σ = 103680000. Its totient is φ = 11495952.

The previous prime is 40529509. The next prime is 40529543. The reversal of 40529538 is 83592504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67363 + ... + 67961.

It is an arithmetic number, because the mean of its divisors is an integer number (1620000).

Almost surely, 2^40529538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40529538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51840000).

40529538 is an abundant number, since it is smaller than the sum of its proper divisors (63150462).

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

40529538 is a wasteful number, since it uses less digits than its factorization.

40529538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 40529538 is about 6366.2813321436. The cubic root of 40529538 is about 343.4977403028.

The spelling of 40529538 in words is "forty million, five hundred twenty-nine thousand, five hundred thirty-eight".