1423733949 has 32 divisors (see below), whose sum is σ = 2303124480. Its totient is φ = 862066800.

The previous prime is 1423733939. The next prime is 1423733953. The reversal of 1423733949 is 9493373241.

It is not a de Polignac number, because 1423733949 - 2¹⁷ = 1423602877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423733929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536544 + ... + 539190.

It is an arithmetic number, because the mean of its divisors is an integer number (71972640).

Almost surely, 2^1423733949 is an apocalyptic number.

It is an amenable number.

1423733949 is a deficient number, since it is larger than the sum of its proper divisors (879390531).

1423733949 is a wasteful number, since it uses less digits than its factorization.

1423733949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478 (or 4472 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 1423733949 is about 37732.3991948564. The cubic root of 1423733949 is about 1124.9751958976.

The spelling of 1423733949 in words is "one billion, four hundred twenty-three million, seven hundred thirty-three thousand, nine hundred forty-nine".