70978160 has 40 divisors (see below), whose sum is σ = 180028656. Its totient is φ = 25809920.

The previous prime is 70978157. The next prime is 70978169. The reversal of 70978160 is 6187907.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70978169) 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 7 ways as a sum of consecutive naturals, for example, 39449 + ... + 41208.

Almost surely, 2^70978160 is an apocalyptic number.

It is an amenable number.

70978160 is an abundant number, since it is smaller than the sum of its proper divisors (109050496).

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

70978160 is a wasteful number, since it uses less digits than its factorization.

70978160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80681 (or 80675 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 70978160 is about 8424.8537079287. The cubic root of 70978160 is about 414.0393126258.

The spelling of 70978160 in words is "seventy million, nine hundred seventy-eight thousand, one hundred sixty".