40386242 has 32 divisors (see below), whose sum is σ = 68221440. Its totient is φ = 17804160.

The previous prime is 40386233. The next prime is 40386253. The reversal of 40386242 is 24268304.

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, 71453 + ... + 72015.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^40386242 is an apocalyptic number.

40386242 is a deficient number, since it is larger than the sum of its proper divisors (27835198).

40386242 is a wasteful number, since it uses less digits than its factorization.

40386242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 40386242 is about 6355.0170731478. The cubic root of 40386242 is about 343.0924393928.

The spelling of 40386242 in words is "forty million, three hundred eighty-six thousand, two hundred forty-two".