245619984 has 20 divisors (see below), whose sum is σ = 634518416. Its totient is φ = 81873312.

The previous prime is 245619953. The next prime is 245620003. The reversal of 245619984 is 489916542.

245619984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5117083 = 245619984 / (2 + 4 + 5 + 6 + 1 + 9 + 9 + 8 + 4).

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, 2558494 + ... + 2558589.

Almost surely, 2^245619984 is an apocalyptic number.

245619984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245619984 is an abundant number, since it is smaller than the sum of its proper divisors (388898432).

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

245619984 is a wasteful number, since it uses less digits than its factorization.

245619984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117094 (or 5117088 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 245619984 is about 15672.2679915831. The cubic root of 245619984 is about 626.2598451048.

The spelling of 245619984 in words is "two hundred forty-five million, six hundred nineteen thousand, nine hundred eighty-four".