63401406 has 16 divisors (see below), whose sum is σ = 126914304. Its totient is φ = 21115224.

The previous prime is 63401399. The next prime is 63401419. The reversal of 63401406 is 60410436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3981 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (7932144).

Almost surely, 2^63401406 is an apocalyptic number.

It is a pronic number, being equal to 7962×7963.

63401406 is an abundant number, since it is smaller than the sum of its proper divisors (63512898).

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

63401406 is a wasteful number, since it uses less digits than its factorization.

63401406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 63401406 is about 7962.4999843014. The cubic root of 63401406 is about 398.7490208733.

The spelling of 63401406 in words is "sixty-three million, four hundred one thousand, four hundred six".