1423699056 has 120 divisors (see below), whose sum is σ = 4429466496. Its totient is φ = 423912960.

The previous prime is 1423699049. The next prime is 1423699097. The reversal of 1423699056 is 6509963241.

It is a super-2 number, since 2×1423699056² = 4053838004110582272, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 45766 + ... + 70298.

Almost surely, 2^1423699056 is an apocalyptic number.

1423699056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423699056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2214733248).

1423699056 is an abundant number, since it is smaller than the sum of its proper divisors (3005767440).

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

1423699056 is a wasteful number, since it uses less digits than its factorization.

1423699056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24591 (or 24582 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 1423699056 is about 37731.9368175025. The cubic root of 1423699056 is about 1124.9660054913.

The spelling of 1423699056 in words is "one billion, four hundred twenty-three million, six hundred ninety-nine thousand, fifty-six".