1016620590 has 16 divisors (see below), whose sum is σ = 2439889488. Its totient is φ = 271098816.

The previous prime is 1016620559. The next prime is 1016620601. The reversal of 1016620590 is 950266101.

1016620590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 33887353 = 1016620590 / (1 + 0 + 1 + 6 + 6 + 2 + 0 + 5 + 9 + 0).

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, 16943647 + ... + 16943706.

It is an arithmetic number, because the mean of its divisors is an integer number (152493093).

Almost surely, 2^1016620590 is an apocalyptic number.

1016620590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1016620590 is an abundant number, since it is smaller than the sum of its proper divisors (1423268898).

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

1016620590 is a wasteful number, since it uses less digits than its factorization.

1016620590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33887363.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1016620590 is about 31884.4882348768. The cubic root of 1016620590 is about 1005.5097832009.

Adding to 1016620590 its reverse (950266101), we get a palindrome (1966886691).

The spelling of 1016620590 in words is "one billion, sixteen million, six hundred twenty thousand, five hundred ninety".