1022144040 has 96 divisors (see below), whose sum is σ = 3517399080. Its totient is φ = 256536576.

The previous prime is 1022144033. The next prime is 1022144047. The reversal of 1022144040 is 404412201.

1022144040 is a `hidden beast` number, since 1 + 0 + 221 + 440 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1022144033) and next prime (1022144047).

It can be written as a sum of positive squares in 4 ways, for example, as 991872036 + 30272004 = 31494^2 + 5502^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1022144047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77389 + ... + 89628.

Almost surely, 2^1022144040 is an apocalyptic number.

1022144040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022144040 is an abundant number, since it is smaller than the sum of its proper divisors (2495255040).

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

1022144040 is a wasteful number, since it uses less digits than its factorization.

1022144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167051 (or 167044 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1022144040 is about 31970.9874730200. The cubic root of 1022144040 is about 1007.3275229298.

Adding to 1022144040 its reverse (404412201), we get a palindrome (1426556241).

The spelling of 1022144040 in words is "one billion, twenty-two million, one hundred forty-four thousand, forty".