245383784 has 16 divisors (see below), whose sum is σ = 484310400. Its totient is φ = 116234352.

The previous prime is 245383781. The next prime is 245383807. The reversal of 245383784 is 487383542.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (245383781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807032 + ... + 807335.

It is an arithmetic number, because the mean of its divisors is an integer number (30269400).

Almost surely, 2^245383784 is an apocalyptic number.

It is an amenable number.

245383784 is a deficient number, since it is larger than the sum of its proper divisors (238926616).

245383784 is a wasteful number, since it uses less digits than its factorization.

245383784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614392 (or 1614388 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 245383784 is about 15664.7305754041. The cubic root of 245383784 is about 626.0590335166.

The spelling of 245383784 in words is "two hundred forty-five million, three hundred eighty-three thousand, seven hundred eighty-four".