63401760 has 72 divisors (see below), whose sum is σ = 216363420. Its totient is φ = 16906752.

The previous prime is 63401759. The next prime is 63401761. The reversal of 63401760 is 6710436.

It is an interprime number because it is at equal distance from previous prime (63401759) and next prime (63401761).

It can be written as a sum of positive squares in 2 ways, for example, as 57699216 + 5702544 = 7596^2 + 2388^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (63401761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20575 + ... + 23454.

Almost surely, 2^63401760 is an apocalyptic number.

63401760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63401760 is an abundant number, since it is smaller than the sum of its proper divisors (152961660).

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

63401760 is a wasteful number, since it uses less digits than its factorization.

63401760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44050 (or 44039 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 63401760 is about 7962.5222134698. The cubic root of 63401760 is about 398.7497630066.

It can be divided in two parts, 6340 and 1760, that added together give a square (8100 = 90²).

The spelling of 63401760 in words is "sixty-three million, four hundred one thousand, seven hundred sixty".