40745554 has 8 divisors (see below), whose sum is σ = 62609148. Its totient is φ = 19875840.

The previous prime is 40745539. The next prime is 40745561. The reversal of 40745554 is 45554704.

It can be written as a sum of positive squares in 2 ways, for example, as 39125025 + 1620529 = 6255^2 + 1273^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248367 + ... + 248530.

Almost surely, 2^40745554 is an apocalyptic number.

40745554 is a deficient number, since it is larger than the sum of its proper divisors (21863594).

40745554 is a wasteful number, since it uses less digits than its factorization.

40745554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496940.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 40745554 is about 6383.2244203067. The cubic root of 40745554 is about 344.1069220992.

The spelling of 40745554 in words is "forty million, seven hundred forty-five thousand, five hundred fifty-four".