40274187 has 8 divisors (see below), whose sum is σ = 54947904. Its totient is φ = 26224968.

The previous prime is 40274153. The next prime is 40274197. The reversal of 40274187 is 78147204.

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

It is not a de Polignac number, because 40274187 - 2¹² = 40270091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40274107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155973 + ... + 156230.

It is an arithmetic number, because the mean of its divisors is an integer number (6868488).

Almost surely, 2^40274187 is an apocalyptic number.

40274187 is a deficient number, since it is larger than the sum of its proper divisors (14673717).

40274187 is a wasteful number, since it uses less digits than its factorization.

40274187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312249.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 40274187 is about 6346.1946865819. The cubic root of 40274187 is about 342.7748325974.

The spelling of 40274187 in words is "forty million, two hundred seventy-four thousand, one hundred eighty-seven".