40863429 has 36 divisors (see below), whose sum is σ = 62985988. Its totient is φ = 25505280.

The previous prime is 40863421. The next prime is 40863439. The reversal of 40863429 is 92436804.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3629025 + 37234404 = 1905^2 + 6102^2 .

It is not a de Polignac number, because 40863429 - 2³ = 40863421 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40863393 and 40863402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40863421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 559737 + ... + 559809.

Almost surely, 2^40863429 is an apocalyptic number.

It is an amenable number.

40863429 is a deficient number, since it is larger than the sum of its proper divisors (22122559).

40863429 is a wasteful number, since it uses less digits than its factorization.

40863429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 40863429 is about 6392.4509384117. The cubic root of 40863429 is about 344.4384310855.

The spelling of 40863429 in words is "forty million, eight hundred sixty-three thousand, four hundred twenty-nine".