40545546 has 16 divisors (see below), whose sum is σ = 81173664. Its totient is φ = 13501424.

The previous prime is 40545523. The next prime is 40545559. The reversal of 40545546 is 64554504.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4276 + ... + 9968.

It is an arithmetic number, because the mean of its divisors is an integer number (5073354).

Almost surely, 2^40545546 is an apocalyptic number.

40545546 is an abundant number, since it is smaller than the sum of its proper divisors (40628118).

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

40545546 is a wasteful number, since it uses less digits than its factorization.

40545546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 40545546 is about 6367.5384568921. The cubic root of 40545546 is about 343.5429582542.

The spelling of 40545546 in words is "forty million, five hundred forty-five thousand, five hundred forty-six".