40575534 has 16 divisors (see below), whose sum is σ = 81269760. Its totient is φ = 13505400.

The previous prime is 40575533. The next prime is 40575571. The reversal of 40575534 is 43557504.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40575495 and 40575504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40575533) 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, 142 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (5079360).

Almost surely, 2^40575534 is an apocalyptic number.

40575534 is an abundant number, since it is smaller than the sum of its proper divisors (40694226).

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

40575534 is a wasteful number, since it uses less digits than its factorization.

40575534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9895.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 40575534 is about 6369.8927777475. The cubic root of 40575534 is about 343.6276336249.

It can be divided in two parts, 4057 and 5534, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 40575534 in words is "forty million, five hundred seventy-five thousand, five hundred thirty-four".