40942785 has 48 divisors (see below), whose sum is σ = 73363968. Its totient is φ = 19468800.

The previous prime is 40942771. The next prime is 40942787. The reversal of 40942785 is 58724904.

It is not a de Polignac number, because 40942785 - 2⁶ = 40942721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (40942787) 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, 78325 + ... + 78845.

It is an arithmetic number, because the mean of its divisors is an integer number (1528416).

Almost surely, 2^40942785 is an apocalyptic number.

It is an amenable number.

40942785 is a deficient number, since it is larger than the sum of its proper divisors (32421183).

40942785 is a wasteful number, since it uses less digits than its factorization.

40942785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 40942785 is about 6398.6549367816. The cubic root of 40942785 is about 344.6612511989.

The spelling of 40942785 in words is "forty million, nine hundred forty-two thousand, seven hundred eighty-five".