70025778 has 48 divisors (see below), whose sum is σ = 158109120. Its totient is φ = 22371552.

The previous prime is 70025759. The next prime is 70025789. The reversal of 70025778 is 87752007.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84675 + ... + 85497.

It is an arithmetic number, because the mean of its divisors is an integer number (3293940).

Almost surely, 2^70025778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70025778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79054560).

70025778 is an abundant number, since it is smaller than the sum of its proper divisors (88083342).

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

70025778 is a wasteful number, since it uses less digits than its factorization.

70025778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 70025778 is about 8368.1406536936. The cubic root of 70025778 is about 412.1791135304.

The spelling of 70025778 in words is "seventy million, twenty-five thousand, seven hundred seventy-eight".