1814149456 has 40 divisors (see below), whose sum is σ = 4020883520. Its totient is φ = 776749824.

The previous prime is 1814149423. The next prime is 1814149529. The reversal of 1814149456 is 6549414181.

It is a super-2 number, since 2×1814149456² = 6582276497410191872, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119275 + ... + 133621.

It is an arithmetic number, because the mean of its divisors is an integer number (100522088).

Almost surely, 2^1814149456 is an apocalyptic number.

1814149456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1814149456 is an abundant number, since it is smaller than the sum of its proper divisors (2206734064).

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

1814149456 is a wasteful number, since it uses less digits than its factorization.

1814149456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15491 (or 15485 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 1814149456 is about 42592.8333877895. The cubic root of 1814149456 is about 1219.6194853800.

The spelling of 1814149456 in words is "one billion, eight hundred fourteen million, one hundred forty-nine thousand, four hundred fifty-six".