420209371 has 16 divisors (see below), whose sum is σ = 441262080. Its totient is φ = 399692160.

The previous prime is 420209351. The next prime is 420209393. The reversal of 420209371 is 173902024.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420209371 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (420209341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486486 + ... + 487348.

It is an arithmetic number, because the mean of its divisors is an integer number (27578880).

Almost surely, 2^420209371 is an apocalyptic number.

420209371 is a deficient number, since it is larger than the sum of its proper divisors (21052709).

420209371 is a wasteful number, since it uses less digits than its factorization.

420209371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 420209371 is about 20499.0090248285. The cubic root of 420209371 is about 749.0116587401.

The spelling of 420209371 in words is "four hundred twenty million, two hundred nine thousand, three hundred seventy-one".