429449340 has 48 divisors (see below), whose sum is σ = 1228050432. Its totient is φ = 112082496.

The previous prime is 429449329. The next prime is 429449341. The reversal of 429449340 is 43944924.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429449341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73324 + ... + 78963.

It is an arithmetic number, because the mean of its divisors is an integer number (25584384).

Almost surely, 2^429449340 is an apocalyptic number.

It is an amenable number.

429449340 is an abundant number, since it is smaller than the sum of its proper divisors (798601092).

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

429449340 is a wasteful number, since it uses less digits than its factorization.

429449340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152346 (or 152344 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 429449340 is about 20723.1595081445. The cubic root of 429449340 is about 754.4619003976.

The spelling of 429449340 in words is "four hundred twenty-nine million, four hundred forty-nine thousand, three hundred forty".