70290990 has 320 divisors, whose sum is σ = 250905600. Its totient is φ = 13970880.

The previous prime is 70290989. The next prime is 70291003. The reversal of 70290990 is 9909207.

70290990 = T₄₆₁ + T₄₆₂ + ... + T₈₀₃.

It is a congruent number.

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 3056119 + ... + 3056141.

It is an arithmetic number, because the mean of its divisors is an integer number (784080).

Almost surely, 2^70290990 is an apocalyptic number.

70290990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70290990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125452800).

70290990 is an abundant number, since it is smaller than the sum of its proper divisors (180614610).

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

70290990 is a wasteful number, since it uses less digits than its factorization.

70290990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 70290990 is about 8383.9722089234. The cubic root of 70290990 is about 412.6988132532.

The spelling of 70290990 in words is "seventy million, two hundred ninety thousand, nine hundred ninety".