63849240 has 192 divisors, whose sum is σ = 255528000. Its totient is φ = 13464576.

The previous prime is 63849239. The next prime is 63849251. The reversal of 63849240 is 4294836.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 63849195 and 63849204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31786 + ... + 33734.

It is an arithmetic number, because the mean of its divisors is an integer number (1330875).

Almost surely, 2^63849240 is an apocalyptic number.

63849240 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 63849240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127764000).

63849240 is an abundant number, since it is smaller than the sum of its proper divisors (191678760).

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

63849240 is a wasteful number, since it uses less digits than its factorization.

63849240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 63849240 is about 7990.5719444856. The cubic root of 63849240 is about 399.6856697226.

The spelling of 63849240 in words is "sixty-three million, eight hundred forty-nine thousand, two hundred forty".