4002145626 has 32 divisors (see below), whose sum is σ = 8319705408. Its totient is φ = 1282348800.

The previous prime is 4002145621. The next prime is 4002145657. The reversal of 4002145626 is 6265412004.

It is a super-2 number, since 2×4002145626² = 32034339223421863752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4002145593 and 4002145602.

It is not an unprimeable number, because it can be changed into a prime (4002145621) by changing a digit.

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, 90175 + ... + 127026.

It is an arithmetic number, because the mean of its divisors is an integer number (259990794).

Almost surely, 2^4002145626 is an apocalyptic number.

4002145626 is an abundant number, since it is smaller than the sum of its proper divisors (4317559782).

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

4002145626 is a wasteful number, since it uses less digits than its factorization.

4002145626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217326.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4002145626 is about 63262.5135921740. The cubic root of 4002145626 is about 1587.6848319812.

The spelling of 4002145626 in words is "four billion, two million, one hundred forty-five thousand, six hundred twenty-six".