70814438 has 16 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 34694856.

The previous prime is 70814431. The next prime is 70814459. The reversal of 70814438 is 83441807.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70814398 and 70814407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70814431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19403 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (6773760).

Almost surely, 2^70814438 is an apocalyptic number.

70814438 is a deficient number, since it is larger than the sum of its proper divisors (37565722).

70814438 is a wasteful number, since it uses less digits than its factorization.

70814438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 70814438 is about 8415.1314903571. The cubic root of 70814438 is about 413.7207191699.

The spelling of 70814438 in words is "seventy million, eight hundred fourteen thousand, four hundred thirty-eight".