1423532880 has 560 divisors, whose sum is σ = 6206281344. Its totient is φ = 294865920.

The previous prime is 1423532867. The next prime is 1423532897. The reversal of 1423532880 is 882353241.

1423532880 is a `hidden beast` number, since 1 + 42 + 3 + 532 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a super-3 number, since 3×1423532880³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4490482 + ... + 4490798.

Almost surely, 2^1423532880 is an apocalyptic number.

1423532880 is a gapful number since it is divisible by the number (10) 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 1423532880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3103140672).

1423532880 is an abundant number, since it is smaller than the sum of its proper divisors (4782748464).

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

1423532880 is a wasteful number, since it uses less digits than its factorization.

1423532880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1423532880 is about 37729.7346929448. The cubic root of 1423532880 is about 1124.9222346246.

The spelling of 1423532880 in words is "one billion, four hundred twenty-three million, five hundred thirty-two thousand, eight hundred eighty".