1026820146 has 32 divisors (see below), whose sum is σ = 2257993728. Its totient is φ = 308705040.

The previous prime is 1026820133. The next prime is 1026820147. The reversal of 1026820146 is 6410286201.

It is a super-2 number, since 2×1026820146² = 2108719224462922632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1026820147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52870 + ... + 69633.

It is an arithmetic number, because the mean of its divisors is an integer number (70562304).

Almost surely, 2^1026820146 is an apocalyptic number.

1026820146 is an abundant number, since it is smaller than the sum of its proper divisors (1231173582).

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

1026820146 is a wasteful number, since it uses less digits than its factorization.

1026820146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122646.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1026820146 is about 32044.0344838162. The cubic root of 1026820146 is about 1008.8612941948.

The spelling of 1026820146 in words is "one billion, twenty-six million, eight hundred twenty thousand, one hundred forty-six".