420251012 has 6 divisors (see below), whose sum is σ = 735439278. Its totient is φ = 210125504.

The previous prime is 420251003. The next prime is 420251023. The reversal of 420251012 is 210152024.

It can be written as a sum of positive squares in only one way, i.e., 397364356 + 22886656 = 19934^2 + 4784^2 .

It is a super-2 number, since 2×420251012² = 353221826174048288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52531373 + ... + 52531380.

It is an arithmetic number, because the mean of its divisors is an integer number (122573213).

Almost surely, 2^420251012 is an apocalyptic number.

It is an amenable number.

420251012 is a deficient number, since it is larger than the sum of its proper divisors (315188266).

420251012 is a wasteful number, since it uses less digits than its factorization.

420251012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105062757 (or 105062755 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 420251012 is about 20500.0246829120. The cubic root of 420251012 is about 749.0363992357.

The spelling of 420251012 in words is "four hundred twenty million, two hundred fifty-one thousand, twelve".