634540412 has 12 divisors (see below), whose sum is σ = 1211395416. Its totient is φ = 288427440.

The previous prime is 634540393. The next prime is 634540427. The reversal of 634540412 is 214045436.

634540412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×634540412² = 805283068922259488, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7210643 + ... + 7210730.

It is an arithmetic number, because the mean of its divisors is an integer number (100949618).

Almost surely, 2^634540412 is an apocalyptic number.

It is an amenable number.

634540412 is a deficient number, since it is larger than the sum of its proper divisors (576855004).

634540412 is a wasteful number, since it uses less digits than its factorization.

634540412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421388 (or 14421386 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 634540412 is about 25190.0855893742. The cubic root of 634540412 is about 859.3163902235.

Adding to 634540412 its reverse (214045436), we get a palindrome (848585848).

The spelling of 634540412 in words is "six hundred thirty-four million, five hundred forty thousand, four hundred twelve".