420074156 has 12 divisors (see below), whose sum is σ = 750771168. Its totient is φ = 205568112.

The previous prime is 420074153. The next prime is 420074167. The reversal of 420074156 is 651470024.

It is a super-2 number, since 2×420074156² = 352924593078224672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420074153) 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 3 ways as a sum of consecutive naturals, for example, 1117031 + ... + 1117406.

It is an arithmetic number, because the mean of its divisors is an integer number (62564264).

Almost surely, 2^420074156 is an apocalyptic number.

It is an amenable number.

420074156 is a deficient number, since it is larger than the sum of its proper divisors (330697012).

420074156 is a wasteful number, since it uses less digits than its factorization.

420074156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234488 (or 2234486 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 420074156 is about 20495.7106732116. The cubic root of 420074156 is about 748.9313111139.

The spelling of 420074156 in words is "four hundred twenty million, seventy-four thousand, one hundred fifty-six".