40424945 has 16 divisors (see below), whose sum is σ = 54153792. Its totient is φ = 28714560.

The previous prime is 40424933. The next prime is 40424983. The reversal of 40424945 is 54942404.

It is not a de Polignac number, because 40424945 - 2⁸ = 40424689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6182 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (3384612).

Almost surely, 2^40424945 is an apocalyptic number.

It is an amenable number.

40424945 is a deficient number, since it is larger than the sum of its proper divisors (13728847).

40424945 is a wasteful number, since it uses less digits than its factorization.

40424945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17152.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 40424945 is about 6358.0614183885. The cubic root of 40424945 is about 343.2020020105.

The spelling of 40424945 in words is "forty million, four hundred twenty-four thousand, nine hundred forty-five".