429646540 has 48 divisors (see below), whose sum is σ = 928730880. Its totient is φ = 166864320.

The previous prime is 429646523. The next prime is 429646543. The reversal of 429646540 is 45646924.

It is a happy number.

It is a super-2 number, since 2×429646540² = 369192298667943200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 429646493 and 429646502.

It is not an unprimeable number, because it can be changed into a prime (429646543) 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, 152545 + ... + 155335.

It is an arithmetic number, because the mean of its divisors is an integer number (19348560).

Almost surely, 2^429646540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 429646540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464365440).

429646540 is an abundant number, since it is smaller than the sum of its proper divisors (499084340).

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

429646540 is a wasteful number, since it uses less digits than its factorization.

429646540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022 (or 3020 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 429646540 is about 20727.9169238011. The cubic root of 429646540 is about 754.5773638573.

The spelling of 429646540 in words is "four hundred twenty-nine million, six hundred forty-six thousand, five hundred forty".