1442122461 has 60 divisors (see below), whose sum is σ = 2470361652. Its totient is φ = 835121664.

The previous prime is 1442122459. The next prime is 1442122481. The reversal of 1442122461 is 1642212441.

1442122461 is a `hidden beast` number, since 14 + 421 + 224 + 6 + 1 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 123343236 + 1318779225 = 11106^2 + 36315^2 .

It is not a de Polignac number, because 1442122461 - 2¹ = 1442122459 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442122481) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 229615 + ... + 235811.

Almost surely, 2^1442122461 is an apocalyptic number.

It is an amenable number.

1442122461 is a deficient number, since it is larger than the sum of its proper divisors (1028239191).

1442122461 is a wasteful number, since it uses less digits than its factorization.

1442122461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252 (or 6230 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1442122461 is about 37975.2875038491. The cubic root of 1442122461 is about 1129.7977712609.

The spelling of 1442122461 in words is "one billion, four hundred forty-two million, one hundred twenty-two thousand, four hundred sixty-one".