1423657436 has 12 divisors (see below), whose sum is σ = 2558735928. Its totient is φ = 692590032.

The previous prime is 1423657429. The next prime is 1423657447. The reversal of 1423657436 is 6347563241.

It is a junction number, because it is equal to n+sod(n) for n = 1423657393 and 1423657402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809506 + ... + 4809801.

It is an arithmetic number, because the mean of its divisors is an integer number (213227994).

Almost surely, 2^1423657436 is an apocalyptic number.

It is an amenable number.

1423657436 is a deficient number, since it is larger than the sum of its proper divisors (1135078492).

1423657436 is a wasteful number, since it uses less digits than its factorization.

1423657436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619348 (or 9619346 counting only the distinct ones).

The product of its digits is 362880, while the sum is 41.

The square root of 1423657436 is about 37731.3852912930. The cubic root of 1423657436 is about 1124.9550430759.

The spelling of 1423657436 in words is "one billion, four hundred twenty-three million, six hundred fifty-seven thousand, four hundred thirty-six".