1423731552 has 48 divisors (see below), whose sum is σ = 3774323952. Its totient is φ = 469875200.

The previous prime is 1423731523. The next prime is 1423731559. The reversal of 1423731552 is 2551373241.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423731559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63723 + ... + 83114.

It is an arithmetic number, because the mean of its divisors is an integer number (78631749).

Almost surely, 2^1423731552 is an apocalyptic number.

1423731552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1423731552 is an abundant number, since it is smaller than the sum of its proper divisors (2350592400).

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

1423731552 is a wasteful number, since it uses less digits than its factorization.

1423731552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146951 (or 146943 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 1423731552 is about 37732.3674316892. The cubic root of 1423731552 is about 1124.9745645607.

The spelling of 1423731552 in words is "one billion, four hundred twenty-three million, seven hundred thirty-one thousand, five hundred fifty-two".