420157466 has 8 divisors (see below), whose sum is σ = 630631764. Its totient is φ = 209946880.

The previous prime is 420157457. The next prime is 420157513. The reversal of 420157466 is 664751024.

It can be written as a sum of positive squares in 2 ways, for example, as 414733225 + 5424241 = 20365^2 + 2329^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61895 + ... + 68346.

Almost surely, 2^420157466 is an apocalyptic number.

420157466 is a deficient number, since it is larger than the sum of its proper divisors (210474298).

420157466 is a wasteful number, since it uses less digits than its factorization.

420157466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131856.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 420157466 is about 20497.7429489200. The cubic root of 420157466 is about 748.9808177247.

The spelling of 420157466 in words is "four hundred twenty million, one hundred fifty-seven thousand, four hundred sixty-six".