70398378 has 12 divisors (see below), whose sum is σ = 152529858. Its totient is φ = 23466120.

The previous prime is 70398347. The next prime is 70398379. The reversal of 70398378 is 87389307.

It can be written as a sum of positive squares in only one way, i.e., 55398249 + 15000129 = 7443^2 + 3873^2 .

It is not an unprimeable number, because it can be changed into a prime (70398379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1955493 + ... + 1955528.

Almost surely, 2^70398378 is an apocalyptic number.

70398378 is an abundant number, since it is smaller than the sum of its proper divisors (82131480).

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

70398378 is a wasteful number, since it uses less digits than its factorization.

70398378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911029 (or 3911026 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 70398378 is about 8390.3741275345. The cubic root of 70398378 is about 412.9088750250.

The spelling of 70398378 in words is "seventy million, three hundred ninety-eight thousand, three hundred seventy-eight".