245190456 has 128 divisors (see below), whose sum is σ = 824256000. Its totient is φ = 65926656.

The previous prime is 245190437. The next prime is 245190457. The reversal of 245190456 is 654091542.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 245190456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245190457) 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, 20935 + ... + 30473.

It is an arithmetic number, because the mean of its divisors is an integer number (6439500).

Almost surely, 2^245190456 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 245190456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412128000).

245190456 is an abundant number, since it is smaller than the sum of its proper divisors (579065544).

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

245190456 is a wasteful number, since it uses less digits than its factorization.

245190456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9578 (or 9568 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 245190456 is about 15658.5585543498. The cubic root of 245190456 is about 625.8945747534.

The spelling of 245190456 in words is "two hundred forty-five million, one hundred ninety thousand, four hundred fifty-six".