1423734396 has 144 divisors (see below), whose sum is σ = 4098834432. Its totient is φ = 382838400.

The previous prime is 1423734383. The next prime is 1423734397. The reversal of 1423734396 is 6934373241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423734397) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 673381 + ... + 675491.

It is an arithmetic number, because the mean of its divisors is an integer number (28464128).

Almost surely, 2^1423734396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423734396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049417216).

1423734396 is an abundant number, since it is smaller than the sum of its proper divisors (2675100036).

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

1423734396 is a wasteful number, since it uses less digits than its factorization.

1423734396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2191 counting only the distinct ones).

The product of its digits is 326592, while the sum is 42.

The square root of 1423734396 is about 37732.4051181475. The cubic root of 1423734396 is about 1124.9753136311.

The spelling of 1423734396 in words is "one billion, four hundred twenty-three million, seven hundred thirty-four thousand, three hundred ninety-six".