70274990 has 16 divisors (see below), whose sum is σ = 126636048. Its totient is φ = 28078656.

The previous prime is 70274899. The next prime is 70274999. The reversal of 70274990 is 9947207.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70274999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6929 + ... + 13731.

It is an arithmetic number, because the mean of its divisors is an integer number (7914753).

Almost surely, 2^70274990 is an apocalyptic number.

70274990 is a deficient number, since it is larger than the sum of its proper divisors (56361058).

70274990 is a wasteful number, since it uses less digits than its factorization.

70274990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 70274990 is about 8383.0179529809. The cubic root of 70274990 is about 412.6674973283.

The spelling of 70274990 in words is "seventy million, two hundred seventy-four thousand, nine hundred ninety".