1478940049 has 2 divisors, whose sum is σ = 1478940050. Its totient is φ = 1478940048.

The previous prime is 1478939989. The next prime is 1478940077. The reversal of 1478940049 is 9400498741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477633600 + 1306449 = 38440^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478940049 - 2⁷ = 1478939921 is a prime.

It is a super-2 number, since 2×1478940049² = 4374527337072244802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1478939990 and 1478940008.

It is not a weakly prime, because it can be changed into another prime (1478940649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739470024 + 739470025.

It is an arithmetic number, because the mean of its divisors is an integer number (739470025).

Almost surely, 2^1478940049 is an apocalyptic number.

It is an amenable number.

1478940049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478940049 is an equidigital number, since it uses as much as digits as its factorization.

1478940049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1478940049 is about 38456.9895987712. The cubic root of 1478940049 is about 1139.3317230806.

The spelling of 1478940049 in words is "one billion, four hundred seventy-eight million, nine hundred forty thousand, forty-nine".