140418433 has 4 divisors (see below), whose sum is σ = 141661188. Its totient is φ = 139175680.

The previous prime is 140418431. The next prime is 140418451. The reversal of 140418433 is 334814041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334814041 = 47 ⋅7123703.

It can be written as a sum of positive squares in 2 ways, for example, as 44515584 + 95902849 = 6672^2 + 9793^2 .

It is a cyclic number.

It is not a de Polignac number, because 140418433 - 2¹ = 140418431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140418431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621208 + ... + 621433.

It is an arithmetic number, because the mean of its divisors is an integer number (35415297).

Almost surely, 2^140418433 is an apocalyptic number.

It is an amenable number.

140418433 is a deficient number, since it is larger than the sum of its proper divisors (1242755).

140418433 is a wasteful number, since it uses less digits than its factorization.

140418433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242754.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 140418433 is about 11849.8283953819. The cubic root of 140418433 is about 519.7662077725.

The spelling of 140418433 in words is "one hundred forty million, four hundred eighteen thousand, four hundred thirty-three".