40545554 has 8 divisors (see below), whose sum is σ = 69506688. Its totient is φ = 17376660.

The previous prime is 40545523. The next prime is 40545559. The reversal of 40545554 is 45554504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40545554.

It is not an unprimeable number, because it can be changed into a prime (40545559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448042 + ... + 1448069.

It is an arithmetic number, because the mean of its divisors is an integer number (8688336).

Almost surely, 2^40545554 is an apocalyptic number.

40545554 is a deficient number, since it is larger than the sum of its proper divisors (28961134).

40545554 is a wasteful number, since it uses less digits than its factorization.

40545554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896120.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 40545554 is about 6367.5390850783. The cubic root of 40545554 is about 343.5429808489.

The spelling of 40545554 in words is "forty million, five hundred forty-five thousand, five hundred fifty-four".