245433040 has 40 divisors (see below), whose sum is σ = 573166440. Its totient is φ = 97737216.

The previous prime is 245433017. The next prime is 245433049. The reversal of 245433040 is 40334542.

It can be written as a sum of positive squares in 4 ways, for example, as 18870336 + 226562704 = 4344^2 + 15052^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 245432996 and 245433014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245433049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11622 + ... + 25018.

It is an arithmetic number, because the mean of its divisors is an integer number (14329161).

Almost surely, 2^245433040 is an apocalyptic number.

245433040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245433040 is an abundant number, since it is smaller than the sum of its proper divisors (327733400).

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

245433040 is a wasteful number, since it uses less digits than its factorization.

245433040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13639 (or 13633 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 245433040 is about 15666.3026908074. The cubic root of 245433040 is about 626.1009204201.

Adding to 245433040 its reverse (40334542), we get a palindrome (285767582).

The spelling of 245433040 in words is "two hundred forty-five million, four hundred thirty-three thousand, forty".