140418369 has 48 divisors (see below), whose sum is σ = 254800000. Its totient is φ = 74045664.

The previous prime is 140418361. The next prime is 140418403. The reversal of 140418369 is 963814041.

It is not a de Polignac number, because 140418369 - 2³ = 140418361 is a prime.

It is a super-2 number, since 2×140418369² = 39434636705240322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140418361) 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 47 ways as a sum of consecutive naturals, for example, 38382 + ... + 41880.

Almost surely, 2^140418369 is an apocalyptic number.

It is an amenable number.

140418369 is a deficient number, since it is larger than the sum of its proper divisors (114381631).

140418369 is a wasteful number, since it uses less digits than its factorization.

140418369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539 (or 3522 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140418369 is about 11849.8256949206. The cubic root of 140418369 is about 519.7661288060.

The spelling of 140418369 in words is "one hundred forty million, four hundred eighteen thousand, three hundred sixty-nine".