245262742 has 4 divisors (see below), whose sum is σ = 367894116. Its totient is φ = 122631370.

The previous prime is 245262739. The next prime is 245262749. The reversal of 245262742 is 247262542.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×245262742² = 120307625226717128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245262698 and 245262707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245262749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61315684 + ... + 61315687.

It is an arithmetic number, because the mean of its divisors is an integer number (91973529).

Almost surely, 2^245262742 is an apocalyptic number.

245262742 is a deficient number, since it is larger than the sum of its proper divisors (122631374).

245262742 is a wasteful number, since it uses less digits than its factorization.

245262742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122631373.

The product of its digits is 53760, while the sum is 34.

The square root of 245262742 is about 15660.8665788327. The cubic root of 245262742 is about 625.9560765624.

The spelling of 245262742 in words is "two hundred forty-five million, two hundred sixty-two thousand, seven hundred forty-two".