245251365340 has 48 divisors (see below), whose sum is σ = 520396672320. Its totient is φ = 97078924800.

The previous prime is 245251365329. The next prime is 245251365347. The reversal of 245251365340 is 43563152542.

It is a super-2 number, since 2×245251365340² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245251365293 and 245251365302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245251365347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3995401 + ... + 4056319.

It is an arithmetic number, because the mean of its divisors is an integer number (10841597340).

Almost surely, 2^245251365340 is an apocalyptic number.

245251365340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245251365340 is an abundant number, since it is smaller than the sum of its proper divisors (275145306980).

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

245251365340 is a wasteful number, since it uses less digits than its factorization.

245251365340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63022 (or 63020 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 245251365340 in words is "two hundred forty-five billion, two hundred fifty-one million, three hundred sixty-five thousand, three hundred forty".