1969290020 has 24 divisors (see below), whose sum is σ = 4136798904. Its totient is φ = 787470336.

The previous prime is 1969290019. The next prime is 1969290073. The reversal of 1969290020 is 200929691.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 1969051876 = 488^2 + 44374^2 .

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, 59204 + ... + 86276.

It is an arithmetic number, because the mean of its divisors is an integer number (172366621).

Almost surely, 2^1969290020 is an apocalyptic number.

1969290020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1969290020 is an abundant number, since it is smaller than the sum of its proper divisors (2167508884).

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

1969290020 is a wasteful number, since it uses less digits than its factorization.

1969290020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30719 (or 30717 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1969290020 is about 44376.6832920172. The cubic root of 1969290020 is about 1253.4390671763.

The spelling of 1969290020 in words is "one billion, nine hundred sixty-nine million, two hundred ninety thousand, twenty".