40557573 has 48 divisors (see below), whose sum is σ = 70387200. Its totient is φ = 22014720.

The previous prime is 40557553. The next prime is 40557581. The reversal of 40557573 is 37575504.

It is not a de Polignac number, because 40557573 - 2⁸ = 40557317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40557553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144193 + ... + 144473.

It is an arithmetic number, because the mean of its divisors is an integer number (1466400).

Almost surely, 2^40557573 is an apocalyptic number.

It is an amenable number.

40557573 is a deficient number, since it is larger than the sum of its proper divisors (29829627).

40557573 is a wasteful number, since it uses less digits than its factorization.

40557573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 40557573 is about 6368.4827863472. The cubic root of 40557573 is about 343.5769232072.

It can be divided in two parts, 4055 and 7573, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 40557573 in words is "forty million, five hundred fifty-seven thousand, five hundred seventy-three".