2645424242 has 32 divisors (see below), whose sum is σ = 4128328512. Its totient is φ = 1270531584.

The previous prime is 2645424233. The next prime is 2645424251. The reversal of 2645424242 is 2424245462.

It is an interprime number because it is at equal distance from previous prime (2645424233) and next prime (2645424251).

It is a super-2 number, since 2×2645424242² = 13996538840322549128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330373 + ... + 1332359.

It is an arithmetic number, because the mean of its divisors is an integer number (129010266).

Almost surely, 2^2645424242 is an apocalyptic number.

2645424242 is a deficient number, since it is larger than the sum of its proper divisors (1482904270).

2645424242 is a wasteful number, since it uses less digits than its factorization.

2645424242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its digits is 122880, while the sum is 35.

The square root of 2645424242 is about 51433.6878125611. The cubic root of 2645424242 is about 1383.0305592677.

The spelling of 2645424242 in words is "two billion, six hundred forty-five million, four hundred twenty-four thousand, two hundred forty-two".