429345672 has 32 divisors (see below), whose sum is σ = 1226702400. Its totient is φ = 122670144.

The previous prime is 429345661. The next prime is 429345689. The reversal of 429345672 is 276543924.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277647 + ... + 1277982.

It is an arithmetic number, because the mean of its divisors is an integer number (38334450).

Almost surely, 2^429345672 is an apocalyptic number.

429345672 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

429345672 is an abundant number, since it is smaller than the sum of its proper divisors (797356728).

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

429345672 is a wasteful number, since it uses less digits than its factorization.

429345672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555645 (or 2555641 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 429345672 is about 20720.6580976570. The cubic root of 429345672 is about 754.4011871047.

The spelling of 429345672 in words is "four hundred twenty-nine million, three hundred forty-five thousand, six hundred seventy-two".