433140138 has 24 divisors (see below), whose sum is σ = 953857476. Its totient is φ = 142012800.

The previous prime is 433140137. The next prime is 433140139. The reversal of 433140138 is 831041334.

It is an interprime number because it is at equal distance from previous prime (433140137) and next prime (433140139).

It can be written as a sum of positive squares in 2 ways, for example, as 394538769 + 38601369 = 19863^2 + 6213^2 .

It is a super-2 number, since 2×433140138² = 375220758293318088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (433140133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196143 + ... + 198338.

Almost surely, 2^433140138 is an apocalyptic number.

433140138 is an abundant number, since it is smaller than the sum of its proper divisors (520717338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

433140138 is a wasteful number, since it uses less digits than its factorization.

433140138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394550 (or 394547 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 433140138 is about 20812.0190755246. The cubic root of 433140138 is about 756.6170845614.

The spelling of 433140138 in words is "four hundred thirty-three million, one hundred forty thousand, one hundred thirty-eight".