1049212305 has 16 divisors (see below), whose sum is σ = 1865266560. Its totient is φ = 559579824.

The previous prime is 1049212301. The next prime is 1049212313. The reversal of 1049212305 is 5032129401.

It is not a de Polignac number, because 1049212305 - 2² = 1049212301 is a prime.

It is a super-2 number, since 2×1049212305² = 2201692921926826050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1049212301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3885837 + ... + 3886106.

It is an arithmetic number, because the mean of its divisors is an integer number (116579160).

Almost surely, 2^1049212305 is an apocalyptic number.

1049212305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1049212305 is a deficient number, since it is larger than the sum of its proper divisors (816054255).

1049212305 is an equidigital number, since it uses as much as digits as its factorization.

1049212305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771957 (or 7771951 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1049212305 is about 32391.5468139451. The cubic root of 1049212305 is about 1016.1421312231.

The spelling of 1049212305 in words is "one billion, forty-nine million, two hundred twelve thousand, three hundred five".