69406938 has 24 divisors (see below), whose sum is σ = 150535476. Its totient is φ = 23112000.

The previous prime is 69406933. The next prime is 69406957. The reversal of 69406938 is 83960496.

It can be written as a sum of positive squares in 2 ways, for example, as 69006249 + 400689 = 8307^2 + 633^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69406893 and 69406902.

It is not an unprimeable number, because it can be changed into a prime (69406933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31348 + ... + 33488.

Almost surely, 2^69406938 is an apocalyptic number.

69406938 is an abundant number, since it is smaller than the sum of its proper divisors (81128538).

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

69406938 is a wasteful number, since it uses less digits than its factorization.

69406938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950 (or 3947 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 69406938 is about 8331.0826427302. The cubic root of 69406938 is about 410.9613333187.

The spelling of 69406938 in words is "sixty-nine million, four hundred six thousand, nine hundred thirty-eight".