245130642 has 48 divisors (see below), whose sum is σ = 561869568. Its totient is φ = 77077440.

The previous prime is 245130637. The next prime is 245130703. The reversal of 245130642 is 246031542.

245130642 is a `hidden beast` number, since 2 + 4 + 5 + 13 + 0 + 642 = 666.

245130642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26167 + ... + 34277.

It is an arithmetic number, because the mean of its divisors is an integer number (11705616).

Almost surely, 2^245130642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245130642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280934784).

245130642 is an abundant number, since it is smaller than the sum of its proper divisors (316738926).

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

245130642 is a wasteful number, since it uses less digits than its factorization.

245130642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215 (or 8212 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 245130642 is about 15656.6484919347. The cubic root of 245130642 is about 625.8436751339.

The spelling of 245130642 in words is "two hundred forty-five million, one hundred thirty thousand, six hundred forty-two".