1948074769 has 27 divisors (see below), whose sum is σ = 2170769979. Its totient is φ = 1747825200.

The previous prime is 1948074763. The next prime is 1948074773. The reversal of 1948074769 is 9674708491.

The square root of 1948074769 is 44137.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1871687169 + 76387600 = 43263^2 + 8740^2 .

It is not a de Polignac number, because 1948074769 - 2¹³ = 1948066577 is a prime.

It is a super-2 number, since 2×1948074769² = 7589990611228806722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948074763) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 19287819 + ... + 19287919.

Almost surely, 2^1948074769 is an apocalyptic number.

1948074769 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1948074769 is the 44137-th square number.

1948074769 is the 22069-th centered octagonal number.

It is an amenable number.

1948074769 is a deficient number, since it is larger than the sum of its proper divisors (222695210).

1948074769 is an equidigital number, since it uses as much as digits as its factorization.

1948074769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The cubic root of 1948074769 is about 1248.9216874478.

It can be divided in two parts, 19480 and 74769, that added together give a palindrome (94249).

The spelling of 1948074769 in words is "one billion, nine hundred forty-eight million, seventy-four thousand, seven hundred sixty-nine".