245115420 has 48 divisors (see below), whose sum is σ = 748718208. Its totient is φ = 59421760.

The previous prime is 245115397. The next prime is 245115427. The reversal of 245115420 is 24511542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245115427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185034 + ... + 186353.

It is an arithmetic number, because the mean of its divisors is an integer number (15598296).

Almost surely, 2^245115420 is an apocalyptic number.

245115420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245115420 is an abundant number, since it is smaller than the sum of its proper divisors (503602788).

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

245115420 is a wasteful number, since it uses less digits than its factorization.

245115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371410 (or 371408 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 245115420 is about 15656.1623650242. The cubic root of 245115420 is about 625.8307204232.

Adding to 245115420 its reverse (24511542), we get a palindrome (269626962).

It can be divided in two parts, 2451 and 15420, that added together give a palindrome (17871).

The spelling of 245115420 in words is "two hundred forty-five million, one hundred fifteen thousand, four hundred twenty".