40194738 has 32 divisors (see below), whose sum is σ = 90040320. Its totient is φ = 13290480.

The previous prime is 40194727. The next prime is 40194743. The reversal of 40194738 is 83749104.

It is a happy number.

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, 3928 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (2813760).

Almost surely, 2^40194738 is an apocalyptic number.

40194738 is an abundant number, since it is smaller than the sum of its proper divisors (49845582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40194738 is a wasteful number, since it uses less digits than its factorization.

40194738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 40194738 is about 6339.9320185630. The cubic root of 40194738 is about 342.5492866007.

The spelling of 40194738 in words is "forty million, one hundred ninety-four thousand, seven hundred thirty-eight".