942440449 has 2 divisors, whose sum is σ = 942440450. Its totient is φ = 942440448.

The previous prime is 942440363. The next prime is 942440467. The reversal of 942440449 is 944044249.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656999424 + 285441025 = 25632^2 + 16895^2 .

It is a cyclic number.

It is not a de Polignac number, because 942440449 - 2⁷ = 942440321 is a prime.

It is a super-2 number, since 2×942440449² = 1776387999822643202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (942443449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471220224 + 471220225.

It is an arithmetic number, because the mean of its divisors is an integer number (471220225).

It is a Proth number, since it is equal to 28761 ⋅ 2¹⁵ + 1 and 28761 < 2¹⁵.

Almost surely, 2^942440449 is an apocalyptic number.

It is an amenable number.

942440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

942440449 is an equidigital number, since it uses as much as digits as its factorization.

942440449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 942440449 is about 30699.1929698486. The cubic root of 942440449 is about 980.4331172437.

The spelling of 942440449 in words is "nine hundred forty-two million, four hundred forty thousand, four hundred forty-nine".