420688495 has 16 divisors (see below), whose sum is σ = 517866048. Its totient is φ = 327880960.

The previous prime is 420688459. The next prime is 420688523. The reversal of 420688495 is 594886024.

It is not a de Polignac number, because 420688495 - 2²¹ = 418591343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260982 + ... + 262588.

It is an arithmetic number, because the mean of its divisors is an integer number (32366628).

Almost surely, 2^420688495 is an apocalyptic number.

420688495 is a deficient number, since it is larger than the sum of its proper divisors (97177553).

420688495 is a wasteful number, since it uses less digits than its factorization.

420688495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 420688495 is about 20510.6922116246. The cubic root of 420688495 is about 749.2962257349.

The spelling of 420688495 in words is "four hundred twenty million, six hundred eighty-eight thousand, four hundred ninety-five".