429780136 has 32 divisors (see below), whose sum is σ = 820795680. Its totient is φ = 210916800.

The previous prime is 429780119. The next prime is 429780151. The reversal of 429780136 is 631087924.

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, 442131 + ... + 443101.

It is an arithmetic number, because the mean of its divisors is an integer number (25649865).

Almost surely, 2^429780136 is an apocalyptic number.

It is an amenable number.

429780136 is a deficient number, since it is larger than the sum of its proper divisors (391015544).

429780136 is a wasteful number, since it uses less digits than its factorization.

429780136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 429780136 is about 20731.1392836959. The cubic root of 429780136 is about 754.6555661789.

The spelling of 429780136 in words is "four hundred twenty-nine million, seven hundred eighty thousand, one hundred thirty-six".