245420231340 has 48 divisors (see below), whose sum is σ = 688191793632. Its totient is φ = 65348714496.

The previous prime is 245420231317. The next prime is 245420231351. The reversal of 245420231340 is 43132024542.

It is a super-3 number, since 3×245420231340³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 245420231298 and 245420231307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2980309 + ... + 3061548.

It is an arithmetic number, because the mean of its divisors is an integer number (14337329034).

Almost surely, 2^245420231340 is an apocalyptic number.

245420231340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245420231340 is an abundant number, since it is smaller than the sum of its proper divisors (442771562292).

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

245420231340 is a wasteful number, since it uses less digits than its factorization.

245420231340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042546 (or 6042544 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 245420231340 its reverse (43132024542), we get a palindrome (288552255882).

The spelling of 245420231340 in words is "two hundred forty-five billion, four hundred twenty million, two hundred thirty-one thousand, three hundred forty".