731201406 has 64 divisors (see below), whose sum is σ = 1611187200. Its totient is φ = 219862656.

The previous prime is 731201353. The next prime is 731201461. The reversal of 731201406 is 604102137.

It is a super-2 number, since 2×731201406² = 1069310992272753672, which contains 22 as substring.

It is a congruent number.

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, 658780 + ... + 659888.

It is an arithmetic number, because the mean of its divisors is an integer number (25174800).

Almost surely, 2^731201406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731201406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805593600).

731201406 is an abundant number, since it is smaller than the sum of its proper divisors (879985794).

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

731201406 is a wasteful number, since it uses less digits than its factorization.

731201406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 731201406 is about 27040.7360476744. The cubic root of 731201406 is about 900.9050180260.

The spelling of 731201406 in words is "seven hundred thirty-one million, two hundred one thousand, four hundred six".