40194051 has 8 divisors (see below), whose sum is σ = 53747904. Its totient is φ = 26718120.

The previous prime is 40194047. The next prime is 40194053. The reversal of 40194051 is 15049104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40194051 - 2² = 40194047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40194053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18265 + ... + 20346.

It is an arithmetic number, because the mean of its divisors is an integer number (6718488).

Almost surely, 2^40194051 is an apocalyptic number.

40194051 is a deficient number, since it is larger than the sum of its proper divisors (13553853).

40194051 is a wasteful number, since it uses less digits than its factorization.

40194051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38961.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40194051 is about 6339.8778379398. The cubic root of 40194051 is about 342.5473349961.

The spelling of 40194051 in words is "forty million, one hundred ninety-four thousand, fifty-one".