245040492 has 96 divisors (see below), whose sum is σ = 638740480. Its totient is φ = 72783360.

The previous prime is 245040463. The next prime is 245040493. The reversal of 245040492 is 294040542.

245040492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (245040493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261048 + ... + 261984.

Almost surely, 2^245040492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245040492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319370240).

245040492 is an abundant number, since it is smaller than the sum of its proper divisors (393699988).

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

245040492 is a wasteful number, since it uses less digits than its factorization.

245040492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 245040492 is about 15653.7692585524. The cubic root of 245040492 is about 625.7669449943.

Subtracting 245040492 from its reverse (294040542), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 245040492 in words is "two hundred forty-five million, forty thousand, four hundred ninety-two".