1021669030 has 16 divisors (see below), whose sum is σ = 1839368160. Its totient is φ = 408586752.

The previous prime is 1021669027. The next prime is 1021669057. The reversal of 1021669030 is 309661201.

It is a super-2 number, since 2×1021669030² = 2087615213722281800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021669030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95302 + ... + 105478.

It is an arithmetic number, because the mean of its divisors is an integer number (114960510).

Almost surely, 2^1021669030 is an apocalyptic number.

1021669030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021669030 is a deficient number, since it is larger than the sum of its proper divisors (817699130).

1021669030 is a wasteful number, since it uses less digits than its factorization.

1021669030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20223.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1021669030 is about 31963.5578432689. The cubic root of 1021669030 is about 1007.1714572586.

The spelling of 1021669030 in words is "one billion, twenty-one million, six hundred sixty-nine thousand, thirty".