1401285449 has 4 divisors (see below), whose sum is σ = 1404614340. Its totient is φ = 1397956560.

The previous prime is 1401285433. The next prime is 1401285491. The reversal of 1401285449 is 9445821041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9445821041 = 373 ⋅25323917.

It can be written as a sum of positive squares in 2 ways, for example, as 44689225 + 1356596224 = 6685^2 + 36832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401285449 - 2⁴ = 1401285433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401215449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663814 + ... + 1664655.

It is an arithmetic number, because the mean of its divisors is an integer number (351153585).

Almost surely, 2^1401285449 is an apocalyptic number.

It is an amenable number.

1401285449 is a deficient number, since it is larger than the sum of its proper divisors (3328891).

1401285449 is an equidigital number, since it uses as much as digits as its factorization.

1401285449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328890.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1401285449 is about 37433.7474613483. The cubic root of 1401285449 is about 1119.0312224832.

The spelling of 1401285449 in words is "one billion, four hundred one million, two hundred eighty-five thousand, four hundred forty-nine".