429371840 has 28 divisors (see below), whose sum is σ = 1022442456. Its totient is φ = 171748608.

The previous prime is 429371809. The next prime is 429371879. The reversal of 429371840 is 48173924.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 429371794 and 429371803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670574 + ... + 671213.

It is an arithmetic number, because the mean of its divisors is an integer number (36515802).

Almost surely, 2^429371840 is an apocalyptic number.

429371840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

429371840 is an abundant number, since it is smaller than the sum of its proper divisors (593070616).

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

429371840 is a wasteful number, since it uses less digits than its factorization.

429371840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341804 (or 1341794 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 429371840 is about 20721.2895351617. The cubic root of 429371840 is about 754.4165133484.

The spelling of 429371840 in words is "four hundred twenty-nine million, three hundred seventy-one thousand, eight hundred forty".