245214420 has 96 divisors (see below), whose sum is σ = 758661120. Its totient is φ = 58680960.

The previous prime is 245214419. The next prime is 245214421. The reversal of 245214420 is 24412542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (245214419) and next prime (245214421).

It is a super-2 number, since 2×245214420² = 120260223551872800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245214421) 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, 49789 + ... + 54491.

It is an arithmetic number, because the mean of its divisors is an integer number (7902720).

Almost surely, 2^245214420 is an apocalyptic number.

245214420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245214420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379330560).

245214420 is an abundant number, since it is smaller than the sum of its proper divisors (513446700).

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

245214420 is a wasteful number, since it uses less digits than its factorization.

245214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 245214420 is about 15659.3237401875. The cubic root of 245214420 is about 625.9149649556.

Adding to 245214420 its reverse (24412542), we get a palindrome (269626962).

The spelling of 245214420 in words is "two hundred forty-five million, two hundred fourteen thousand, four hundred twenty".