245581632 has 84 divisors (see below), whose sum is σ = 730032576. Its totient is φ = 81855360.

The previous prime is 245581621. The next prime is 245581703. The reversal of 245581632 is 236185542.

245581632 is a `hidden beast` number, since 2 + 45 + 581 + 6 + 32 = 666.

It is a super-3 number, since 3×245581632³ (a number of 26 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7657 + ... + 23447.

It is an arithmetic number, because the mean of its divisors is an integer number (8690864).

Almost surely, 2^245581632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245581632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365016288).

245581632 is an abundant number, since it is smaller than the sum of its proper divisors (484450944).

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

245581632 is an equidigital number, since it uses as much as digits as its factorization.

245581632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818 (or 15796 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 245581632 is about 15671.0443812785. The cubic root of 245581632 is about 626.2272479095.

The spelling of 245581632 in words is "two hundred forty-five million, five hundred eighty-one thousand, six hundred thirty-two".