1423319812 has 6 divisors (see below), whose sum is σ = 2490809678. Its totient is φ = 711659904.

The previous prime is 1423319803. The next prime is 1423319819. The reversal of 1423319812 is 2189133241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1339120836 + 84198976 = 36594^2 + 9176^2 .

It is not an unprimeable number, because it can be changed into a prime (1423319819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177914973 + ... + 177914980.

Almost surely, 2^1423319812 is an apocalyptic number.

It is an amenable number.

1423319812 is a deficient number, since it is larger than the sum of its proper divisors (1067489866).

1423319812 is a wasteful number, since it uses less digits than its factorization.

1423319812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355829957 (or 355829955 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 1423319812 is about 37726.9109787695. The cubic root of 1423319812 is about 1124.8661073904.

The spelling of 1423319812 in words is "one billion, four hundred twenty-three million, three hundred nineteen thousand, eight hundred twelve".