245590947840 has 1152 divisors, whose sum is σ = 996700723200. Its totient is φ = 51279298560.

The previous prime is 245590947839. The next prime is 245590947841. The reversal of 245590947840 is 48749095542.

It is an interprime number because it is at equal distance from previous prime (245590947839) and next prime (245590947841).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245590947841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 886609782 + ... + 886610058.

It is an arithmetic number, because the mean of its divisors is an integer number (865191600).

Almost surely, 2^245590947840 is an apocalyptic number.

245590947840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245590947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498350361600).

245590947840 is an abundant number, since it is smaller than the sum of its proper divisors (751109775360).

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

245590947840 is a wasteful number, since it uses less digits than its factorization.

245590947840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 245590947840 in words is "two hundred forty-five billion, five hundred ninety million, nine hundred forty-seven thousand, eight hundred forty".