40874381 has 16 divisors (see below), whose sum is σ = 44863104. Its totient is φ = 37122624.

The previous prime is 40874371. The next prime is 40874389. The reversal of 40874381 is 18347804.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40874381 is a prime.

It is a super-2 number, since 2×40874381² = 3341430044266322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40874389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36035 + ... + 37151.

It is an arithmetic number, because the mean of its divisors is an integer number (2803944).

Almost surely, 2^40874381 is an apocalyptic number.

It is an amenable number.

40874381 is a deficient number, since it is larger than the sum of its proper divisors (3988723).

40874381 is a wasteful number, since it uses less digits than its factorization.

40874381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40874381 is about 6393.3075164581. The cubic root of 40874381 is about 344.4691998587.

The spelling of 40874381 in words is "forty million, eight hundred seventy-four thousand, three hundred eighty-one".