63429372 has 48 divisors (see below), whose sum is σ = 173107200. Its totient is φ = 20029680.

The previous prime is 63429371. The next prime is 63429437. The reversal of 63429372 is 27392436.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63429371) 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, 13404 + ... + 17507.

It is an arithmetic number, because the mean of its divisors is an integer number (3606400).

Almost surely, 2^63429372 is an apocalyptic number.

It is an amenable number.

63429372 is an abundant number, since it is smaller than the sum of its proper divisors (109677828).

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

63429372 is a wasteful number, since it uses less digits than its factorization.

63429372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30943 (or 30935 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 63429372 is about 7964.2558974458. The cubic root of 63429372 is about 398.8076408978.

The spelling of 63429372 in words is "sixty-three million, four hundred twenty-nine thousand, three hundred seventy-two".