1522440040 has 32 divisors (see below), whose sum is σ = 3736899360. Its totient is φ = 553614400.

The previous prime is 1522440019. The next prime is 1522440041. The reversal of 1522440040 is 400442251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1522439993 and 1522440020.

It is not an unprimeable number, because it can be changed into a prime (1522440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729606 + ... + 1730485.

It is an arithmetic number, because the mean of its divisors is an integer number (116778105).

Almost surely, 2^1522440040 is an apocalyptic number.

1522440040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1522440040 is an abundant number, since it is smaller than the sum of its proper divisors (2214459320).

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

1522440040 is a wasteful number, since it uses less digits than its factorization.

1522440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460113 (or 3460109 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1522440040 is about 39018.4576835118. The cubic root of 1522440040 is about 1150.3943297990.

Adding to 1522440040 its reverse (400442251), we get a palindrome (1922882291).

The spelling of 1522440040 in words is "one billion, five hundred twenty-two million, four hundred forty thousand, forty".