429900040 has 32 divisors (see below), whose sum is σ = 993421080. Its totient is φ = 167311872.

The previous prime is 429900017. The next prime is 429900041. The reversal of 429900040 is 40009924.

It can be written as a sum of positive squares in 4 ways, for example, as 359709156 + 70190884 = 18966^2 + 8378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 429899981 and 429900008.

It is not an unprimeable number, because it can be changed into a prime (429900041) 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 7 ways as a sum of consecutive naturals, for example, 143757 + ... + 146716.

Almost surely, 2^429900040 is an apocalyptic number.

429900040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

429900040 is an abundant number, since it is smaller than the sum of its proper divisors (563521040).

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

429900040 is a wasteful number, since it uses less digits than its factorization.

429900040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290521 (or 290517 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 429900040 is about 20734.0309636115. The cubic root of 429900040 is about 754.7257398947.

Adding to 429900040 its reverse (40009924), we get a palindrome (469909964).

The spelling of 429900040 in words is "four hundred twenty-nine million, nine hundred thousand, forty".