4004020426 has 16 divisors (see below), whose sum is σ = 6865223040. Its totient is φ = 1715711760.

The previous prime is 4004020409. The next prime is 4004020451. The reversal of 4004020426 is 6240204004.

It is a junction number, because it is equal to n+sod(n) for n = 4004020397 and 4004020406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72096 + ... + 114916.

It is an arithmetic number, because the mean of its divisors is an integer number (429076440).

Almost surely, 2^4004020426 is an apocalyptic number.

4004020426 is a deficient number, since it is larger than the sum of its proper divisors (2861202614).

4004020426 is a wasteful number, since it uses less digits than its factorization.

4004020426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49509.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4004020426 is about 63277.3294790480. The cubic root of 4004020426 is about 1587.9327095889.

The spelling of 4004020426 in words is "four billion, four million, twenty thousand, four hundred twenty-six".