631040214 has 32 divisors (see below), whose sum is σ = 1443776256. Its totient is φ = 180122400.

The previous prime is 631040209. The next prime is 631040219. The reversal of 631040214 is 412040136.

It is an interprime number because it is at equal distance from previous prime (631040209) and next prime (631040219).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631040219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40189 + ... + 53639.

It is an arithmetic number, because the mean of its divisors is an integer number (45118008).

Almost surely, 2^631040214 is an apocalyptic number.

631040214 is an abundant number, since it is smaller than the sum of its proper divisors (812736042).

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

631040214 is a wasteful number, since it uses less digits than its factorization.

631040214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 631040214 is about 25120.5138084395. The cubic root of 631040214 is about 857.7334466842.

The spelling of 631040214 in words is "six hundred thirty-one million, forty thousand, two hundred fourteen".