420001190 has 32 divisors (see below), whose sum is σ = 865935360. Its totient is φ = 143678304.

The previous prime is 420001189. The next prime is 420001199. The reversal of 420001190 is 91100024.

It is a happy number.

It is a super-2 number, since 2×420001190² = 352801999202832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420001199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25931 + ... + 38889.

It is an arithmetic number, because the mean of its divisors is an integer number (27060480).

Almost surely, 2^420001190 is an apocalyptic number.

420001190 is an abundant number, since it is smaller than the sum of its proper divisors (445934170).

420001190 is a wasteful number, since it uses less digits than its factorization.

420001190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 420001190 is about 20493.9305649258. The cubic root of 420001190 is about 748.8879460036.

The spelling of 420001190 in words is "four hundred twenty million, one thousand, one hundred ninety".