245010440 has 16 divisors (see below), whose sum is σ = 551273580. Its totient is φ = 98004160.

The previous prime is 245010433. The next prime is 245010461. The reversal of 245010440 is 44010542.

It can be written as a sum of positive squares in 2 ways, for example, as 226743364 + 18267076 = 15058^2 + 4274^2 .

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, 3062591 + ... + 3062670.

Almost surely, 2^245010440 is an apocalyptic number.

245010440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245010440 is an abundant number, since it is smaller than the sum of its proper divisors (306263140).

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

245010440 is a wasteful number, since it uses less digits than its factorization.

245010440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125272 (or 6125268 counting only the distinct ones).

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

The square root of 245010440 is about 15652.8093325128. The cubic root of 245010440 is about 625.7413623965.

Adding to 245010440 its reverse (44010542), we get a palindrome (289020982).

The spelling of 245010440 in words is "two hundred forty-five million, ten thousand, four hundred forty".