63418740 has 288 divisors, whose sum is σ = 235799424. Its totient is φ = 12579840.

The previous prime is 63418717. The next prime is 63418741. The reversal of 63418740 is 4781436.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63418741) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1196554 + ... + 1196606.

It is an arithmetic number, because the mean of its divisors is an integer number (818748).

Almost surely, 2^63418740 is an apocalyptic number.

63418740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63418740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117899712).

63418740 is an abundant number, since it is smaller than the sum of its proper divisors (172380684).

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

63418740 is a wasteful number, since it uses less digits than its factorization.

63418740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 63418740 is about 7963.5883871531. The cubic root of 63418740 is about 398.7853570061.

63418740 divided by its sum of digits (33) gives a triangular number (1921780 = T₁₉₆₀).

The spelling of 63418740 in words is "sixty-three million, four hundred eighteen thousand, seven hundred forty".