421352510406 has 16 divisors (see below), whose sum is σ = 845703974448. Its totient is φ = 139951011200.

The previous prime is 421352510401. The next prime is 421352510437. The reversal of 421352510406 is 604015253124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421352510401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124954575 + ... + 124957946.

It is an arithmetic number, because the mean of its divisors is an integer number (52856498403).

Almost surely, 2^421352510406 is an apocalyptic number.

421352510406 is an abundant number, since it is smaller than the sum of its proper divisors (424351464042).

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

421352510406 is a wasteful number, since it uses less digits than its factorization.

421352510406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249912807.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 421352510406 in words is "four hundred twenty-one billion, three hundred fifty-two million, five hundred ten thousand, four hundred six".