429981690 has 16 divisors (see below), whose sum is σ = 1031956128. Its totient is φ = 114661776.

The previous prime is 429981689. The next prime is 429981691. The reversal of 429981690 is 96189924.

It is an interprime number because it is at equal distance from previous prime (429981689) and next prime (429981691).

It is a super-2 number, since 2×429981690² = 369768507470512200, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (429981691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7166332 + ... + 7166391.

It is an arithmetic number, because the mean of its divisors is an integer number (64497258).

Almost surely, 2^429981690 is an apocalyptic number.

429981690 is an abundant number, since it is smaller than the sum of its proper divisors (601974438).

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

429981690 is a wasteful number, since it uses less digits than its factorization.

429981690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14332733.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 429981690 is about 20735.9998553241. Note that the first 3 decimals coincide. The cubic root of 429981690 is about 754.7735180214.

The spelling of 429981690 in words is "four hundred twenty-nine million, nine hundred eighty-one thousand, six hundred ninety".