40733638 has 16 divisors (see below), whose sum is σ = 67060224. Its totient is φ = 18402760.

The previous prime is 40733617. The next prime is 40733647. The reversal of 40733638 is 83633704.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^40733638 is an apocalyptic number.

40733638 is a deficient number, since it is larger than the sum of its proper divisors (26326586).

40733638 is a wasteful number, since it uses less digits than its factorization.

40733638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11267.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 40733638 is about 6382.2909679832. The cubic root of 40733638 is about 344.0733742438.

The spelling of 40733638 in words is "forty million, seven hundred thirty-three thousand, six hundred thirty-eight".