245115403442 has 32 divisors (see below), whose sum is σ = 472195567872. Its totient is φ = 92752697664.

The previous prime is 245115403409. The next prime is 245115403457. The reversal of 245115403442 is 244304511542.

It is a happy number.

It is a super-2 number, since 2×245115403442² (a number of 24 digits) contains 22 as substring.

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, 29273813 + ... + 29282184.

It is an arithmetic number, because the mean of its divisors is an integer number (14756111496).

Almost surely, 2^245115403442 is an apocalyptic number.

245115403442 is a deficient number, since it is larger than the sum of its proper divisors (227080164430).

245115403442 is a wasteful number, since it uses less digits than its factorization.

245115403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58556042.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 245115403442 its reverse (244304511542), we get a palindrome (489419914984).

The spelling of 245115403442 in words is "two hundred forty-five billion, one hundred fifteen million, four hundred three thousand, four hundred forty-two".