429157220 has 24 divisors (see below), whose sum is σ = 904591800. Its totient is φ = 171022592.

The previous prime is 429157217. The next prime is 429157229. The reversal of 429157220 is 22751924.

It can be written as a sum of positive squares in 4 ways, for example, as 42484324 + 386672896 = 6518^2 + 19664^2 .

It is not an unprimeable number, because it can be changed into a prime (429157229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34505 + ... + 45264.

It is an arithmetic number, because the mean of its divisors is an integer number (37691325).

Almost surely, 2^429157220 is an apocalyptic number.

It is an amenable number.

429157220 is an abundant number, since it is smaller than the sum of its proper divisors (475434580).

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

429157220 is a wasteful number, since it uses less digits than its factorization.

429157220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80047 (or 80045 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 429157220 is about 20716.1101561080. The cubic root of 429157220 is about 754.2907949216.

The spelling of 429157220 in words is "four hundred twenty-nine million, one hundred fifty-seven thousand, two hundred twenty".