420651190 has 8 divisors (see below), whose sum is σ = 757172160. Its totient is φ = 168260472.

The previous prime is 420651169. The next prime is 420651191. The reversal of 420651190 is 91156024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420651190² = 353894847296832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420651191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21032550 + ... + 21032569.

It is an arithmetic number, because the mean of its divisors is an integer number (94646520).

Almost surely, 2^420651190 is an apocalyptic number.

420651190 is a deficient number, since it is larger than the sum of its proper divisors (336520970).

420651190 is a wasteful number, since it uses less digits than its factorization.

420651190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42065126.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 420651190 is about 20509.7827877333. The cubic root of 420651190 is about 749.2740768668.

It can be divided in two parts, 4206511 and 90, that added together give a square (4206601 = 2051²).

The spelling of 420651190 in words is "four hundred twenty million, six hundred fifty-one thousand, one hundred ninety".