63340431 has 16 divisors (see below), whose sum is σ = 105293568. Its totient is φ = 32904000.

The previous prime is 63340399. The next prime is 63340451. The reversal of 63340431 is 13404336.

It is not a de Polignac number, because 63340431 - 2⁵ = 63340399 is a prime.

It is a super-2 number, since 2×63340431² = 8024020398531522, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63340451) 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, 136870 + ... + 137331.

It is an arithmetic number, because the mean of its divisors is an integer number (6580848).

Almost surely, 2^63340431 is an apocalyptic number.

63340431 is a deficient number, since it is larger than the sum of its proper divisors (41953137).

63340431 is a wasteful number, since it uses less digits than its factorization.

63340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274222.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 63340431 is about 7958.6701778626. The cubic root of 63340431 is about 398.6211503120.

Adding to 63340431 its reverse (13404336), we get a palindrome (76744767).

The spelling of 63340431 in words is "sixty-three million, three hundred forty thousand, four hundred thirty-one".