4006623478 has 32 divisors (see below), whose sum is σ = 7475963040. Its totient is φ = 1582210560.

The previous prime is 4006623463. The next prime is 4006623521. The reversal of 4006623478 is 8743266004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4006623478.

It is a congruent number.

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, 407173 + ... + 416896.

It is an arithmetic number, because the mean of its divisors is an integer number (233623845).

Almost surely, 2^4006623478 is an apocalyptic number.

4006623478 is a deficient number, since it is larger than the sum of its proper divisors (3469339562).

4006623478 is a wasteful number, since it uses less digits than its factorization.

4006623478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824112.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 4006623478 is about 63297.8947359231. The cubic root of 4006623478 is about 1588.2767451301.

The spelling of 4006623478 in words is "four billion, six million, six hundred twenty-three thousand, four hundred seventy-eight".