423251040452 has 12 divisors (see below), whose sum is σ = 749011673340. Its totient is φ = 209247705216.

The previous prime is 423251040449. The next prime is 423251040481. The reversal of 423251040452 is 254040152324.

It can be written as a sum of positive squares in 2 ways, for example, as 177330263236 + 245920777216 = 421106^2 + 495904^2 .

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, 594453353 + ... + 594454064.

It is an arithmetic number, because the mean of its divisors is an integer number (62417639445).

Almost surely, 2^423251040452 is an apocalyptic number.

It is an amenable number.

423251040452 is a deficient number, since it is larger than the sum of its proper divisors (325760632888).

423251040452 is a wasteful number, since it uses less digits than its factorization.

423251040452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188907510 (or 1188907508 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 423251040452 its reverse (254040152324), we get a palindrome (677291192776).

The spelling of 423251040452 in words is "four hundred twenty-three billion, two hundred fifty-one million, forty thousand, four hundred fifty-two".