308426070 has 64 divisors (see below), whose sum is σ = 786309120. Its totient is φ = 77157888.

The previous prime is 308426047. The next prime is 308426071. The reversal of 308426070 is 70624803.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308426071) 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 31 ways as a sum of consecutive naturals, for example, 194541 + ... + 196119.

It is an arithmetic number, because the mean of its divisors is an integer number (12286080).

Almost surely, 2^308426070 is an apocalyptic number.

308426070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 308426070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393154560).

308426070 is an abundant number, since it is smaller than the sum of its proper divisors (477883050).

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

308426070 is a wasteful number, since it uses less digits than its factorization.

308426070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 308426070 is about 17562.0633753554. The cubic root of 308426070 is about 675.6426034077.

The spelling of 308426070 in words is "three hundred eight million, four hundred twenty-six thousand, seventy".