1956044890 has 16 divisors (see below), whose sum is σ = 3673963008. Its totient is φ = 748399696.

The previous prime is 1956044869. The next prime is 1956044891. The reversal of 1956044890 is 984406591.

It is a happy number.

It is a super-2 number, since 2×1956044890² = 7652223223390224200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 1956044890.

It is not an unprimeable number, because it can be changed into a prime (1956044891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252042 + ... + 4252501.

It is an arithmetic number, because the mean of its divisors is an integer number (229622688).

Almost surely, 2^1956044890 is an apocalyptic number.

1956044890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1956044890 is a deficient number, since it is larger than the sum of its proper divisors (1717918118).

1956044890 is a wasteful number, since it uses less digits than its factorization.

1956044890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504573.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1956044890 is about 44227.1962710728. The cubic root of 1956044890 is about 1250.6225997109.

The spelling of 1956044890 in words is "one billion, nine hundred fifty-six million, forty-four thousand, eight hundred ninety".