1662020250 has 256 divisors, whose sum is σ = 4981616640. Its totient is φ = 364320000.

The previous prime is 1662020233. The next prime is 1662020263. The reversal of 1662020250 is 520202661.

It is a super-2 number, since 2×1662020250² = 5524622622820125000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1662020250.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 3605020 + ... + 3605480.

It is an arithmetic number, because the mean of its divisors is an integer number (19459440).

Almost surely, 2^1662020250 is an apocalyptic number.

1662020250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490808320).

1662020250 is an abundant number, since it is smaller than the sum of its proper divisors (3319596390).

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

1662020250 is a wasteful number, since it uses less digits than its factorization.

1662020250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1662020250 is about 40767.8825793050. The cubic root of 1662020250 is about 1184.5282888133.

The spelling of 1662020250 in words is "one billion, six hundred sixty-two million, twenty thousand, two hundred fifty".