245436420 has 48 divisors (see below), whose sum is σ = 688802688. Its totient is φ = 65299200.

The previous prime is 245436419. The next prime is 245436437. The reversal of 245436420 is 24634542.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22945 + ... + 31895.

It is an arithmetic number, because the mean of its divisors is an integer number (14350056).

Almost surely, 2^245436420 is an apocalyptic number.

245436420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245436420 is an abundant number, since it is smaller than the sum of its proper divisors (443366268).

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

245436420 is a wasteful number, since it uses less digits than its factorization.

245436420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420 (or 9418 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 245436420 is about 15666.4105652827. The cubic root of 245436420 is about 626.1037945393.

The spelling of 245436420 in words is "two hundred forty-five million, four hundred thirty-six thousand, four hundred twenty".