3490421449 has 2 divisors, whose sum is σ = 3490421450. Its totient is φ = 3490421448.

The previous prime is 3490421443. The next prime is 3490421479. The reversal of 3490421449 is 9441240943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959655824 + 1530765625 = 44268^2 + 39125^2 .

It is an emirp because it is prime and its reverse (9441240943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3490421449 - 2⁷ = 3490421321 is a prime.

It is not a weakly prime, because it can be changed into another prime (3490421443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745210724 + 1745210725.

It is an arithmetic number, because the mean of its divisors is an integer number (1745210725).

Almost surely, 2^3490421449 is an apocalyptic number.

It is an amenable number.

3490421449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3490421449 is an equidigital number, since it uses as much as digits as its factorization.

3490421449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 3490421449 is about 59079.7888367926. The cubic root of 3490421449 is about 1516.9081670636.

The spelling of 3490421449 in words is "three billion, four hundred ninety million, four hundred twenty-one thousand, four hundred forty-nine".