70278250 has 48 divisors (see below), whose sum is σ = 153066888. Its totient is φ = 24091200.

The previous prime is 70278233. The next prime is 70278253. The reversal of 70278250 is 5287207.

It can be written as a sum of positive squares in 4 ways, for example, as 3545689 + 66732561 = 1883^2 + 8169^2 .

It is not an unprimeable number, because it can be changed into a prime (70278253) 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 23 ways as a sum of consecutive naturals, for example, 9382 + ... + 15118.

Almost surely, 2^70278250 is an apocalyptic number.

70278250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70278250 is an abundant number, since it is smaller than the sum of its proper divisors (82788638).

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

70278250 is a wasteful number, since it uses less digits than its factorization.

70278250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 70278250 is about 8383.2123914404. The cubic root of 70278250 is about 412.6738783335.

The spelling of 70278250 in words is "seventy million, two hundred seventy-eight thousand, two hundred fifty".