1452423340 has 24 divisors (see below), whose sum is σ = 3063417840. Its totient is φ = 578430528.

The previous prime is 1452423293. The next prime is 1452423347. The reversal of 1452423340 is 433242541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1452423299 and 1452423308.

It is not an unprimeable number, because it can be changed into a prime (1452423347) 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, 153982 + ... + 163141.

It is an arithmetic number, because the mean of its divisors is an integer number (127642410).

Almost surely, 2^1452423340 is an apocalyptic number.

1452423340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452423340 is an abundant number, since it is smaller than the sum of its proper divisors (1610994500).

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

1452423340 is a wasteful number, since it uses less digits than its factorization.

1452423340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317361 (or 317359 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1452423340 is about 38110.6722585682. The cubic root of 1452423340 is about 1132.4813876124.

Adding to 1452423340 its reverse (433242541), we get a palindrome (1885665881).

The spelling of 1452423340 in words is "one billion, four hundred fifty-two million, four hundred twenty-three thousand, three hundred forty".