245212040 has 16 divisors (see below), whose sum is σ = 551727180. Its totient is φ = 98084800.

The previous prime is 245212003. The next prime is 245212067. The reversal of 245212040 is 40212542.

It is a happy number.

245212040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 231831076 + 13380964 = 15226^2 + 3658^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065111 + ... + 3065190.

Almost surely, 2^245212040 is an apocalyptic number.

245212040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245212040 is an abundant number, since it is smaller than the sum of its proper divisors (306515140).

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

245212040 is a wasteful number, since it uses less digits than its factorization.

245212040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130312 (or 6130308 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 245212040 is about 15659.2477469385. The cubic root of 245212040 is about 625.9129399491.

Adding to 245212040 its reverse (40212542), we get a palindrome (285424582).

The spelling of 245212040 in words is "two hundred forty-five million, two hundred twelve thousand, forty".