2438779406 has 16 divisors (see below), whose sum is σ = 4196198400. Its totient is φ = 1041332760.

The previous prime is 2438779391. The next prime is 2438779411. The reversal of 2438779406 is 6049778342.

It is a super-2 number, since 2×2438779406² = 11895289982259425672, which contains 22 as substring.

It is a congruent number.

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, 317606 + ... + 325193.

It is an arithmetic number, because the mean of its divisors is an integer number (262262400).

Almost surely, 2^2438779406 is an apocalyptic number.

2438779406 is a deficient number, since it is larger than the sum of its proper divisors (1757418994).

2438779406 is a wasteful number, since it uses less digits than its factorization.

2438779406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643079.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The square root of 2438779406 is about 49383.9994937632. Note that the first 3 decimals coincide. The cubic root of 2438779406 is about 1346.0385755808.

Adding to 2438779406 its sum of digits (50), we get a square (2438779456 = 49384²).

The spelling of 2438779406 in words is "two billion, four hundred thirty-eight million, seven hundred seventy-nine thousand, four hundred six".