245455100 has 72 divisors (see below), whose sum is σ = 584212608. Its totient is φ = 88772800.

The previous prime is 245455099. The next prime is 245455109. The reversal of 245455100 is 1554542.

It is a super-2 number, since 2×245455100² = 120496412232020000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245455100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245455109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249209 + ... + 250191.

It is an arithmetic number, because the mean of its divisors is an integer number (8114064).

Almost surely, 2^245455100 is an apocalyptic number.

245455100 is a gapful number since it is divisible by the number (20) 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 245455100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292106304).

245455100 is an abundant number, since it is smaller than the sum of its proper divisors (338757508).

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

245455100 is a wasteful number, since it uses less digits than its factorization.

245455100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 245455100 is about 15667.0067338978. The cubic root of 245455100 is about 626.1196782485.

The spelling of 245455100 in words is "two hundred forty-five million, four hundred fifty-five thousand, one hundred".