245267220 has 48 divisors (see below), whose sum is σ = 749181888. Its totient is φ = 59458560.

The previous prime is 245267203. The next prime is 245267273. The reversal of 245267220 is 22762542.

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

It is a congruent number.

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, 185149 + ... + 186468.

It is an arithmetic number, because the mean of its divisors is an integer number (15607956).

Almost surely, 2^245267220 is an apocalyptic number.

245267220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245267220 is an abundant number, since it is smaller than the sum of its proper divisors (503914668).

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

245267220 is a wasteful number, since it uses less digits than its factorization.

245267220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371640 (or 371638 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 245267220 is about 15661.0095460031. The cubic root of 245267220 is about 625.9598861018.

The spelling of 245267220 in words is "two hundred forty-five million, two hundred sixty-seven thousand, two hundred twenty".