442262420 has 12 divisors (see below), whose sum is σ = 928751124. Its totient is φ = 176904960.

The previous prime is 442262413. The next prime is 442262467. The reversal of 442262420 is 24262244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150945796 + 291316624 = 12286^2 + 17068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442262420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11056541 + ... + 11056580.

It is an arithmetic number, because the mean of its divisors is an integer number (77395927).

Almost surely, 2^442262420 is an apocalyptic number.

It is an amenable number.

442262420 is an abundant number, since it is smaller than the sum of its proper divisors (486488704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442262420 is a wasteful number, since it uses less digits than its factorization.

442262420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22113130 (or 22113128 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 442262420 is about 21030.0361388182. The cubic root of 442262420 is about 761.8918817031.

The spelling of 442262420 in words is "four hundred forty-two million, two hundred sixty-two thousand, four hundred twenty".