420400610 has 64 divisors (see below), whose sum is σ = 899334144. Its totient is φ = 138456000.

The previous prime is 420400609. The next prime is 420400621. The reversal of 420400610 is 16004024.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327029 + ... + 328311.

It is an arithmetic number, because the mean of its divisors is an integer number (14052096).

Almost surely, 2^420400610 is an apocalyptic number.

420400610 is an abundant number, since it is smaller than the sum of its proper divisors (478933534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420400610 is a wasteful number, since it uses less digits than its factorization.

420400610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420400610 is about 20503.6730855718. The cubic root of 420400610 is about 749.1252675950.

Adding to 420400610 its reverse (16004024), we get a palindrome (436404634).

The spelling of 420400610 in words is "four hundred twenty million, four hundred thousand, six hundred ten".