3950405238 has 16 divisors (see below), whose sum is σ = 8508565296. Its totient is φ = 1215509280.

The previous prime is 3950405203. The next prime is 3950405279. The reversal of 3950405238 is 8325040593.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 3950405196 and 3950405205.

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, 25323033 + ... + 25323188.

It is an arithmetic number, because the mean of its divisors is an integer number (531785331).

Almost surely, 2^3950405238 is an apocalyptic number.

3950405238 is an abundant number, since it is smaller than the sum of its proper divisors (4558160058).

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

3950405238 is a wasteful number, since it uses less digits than its factorization.

3950405238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50646239.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 3950405238 is about 62852.2492676276. The cubic root of 3950405238 is about 1580.8131847254.

The spelling of 3950405238 in words is "three billion, nine hundred fifty million, four hundred five thousand, two hundred thirty-eight".