1423802772 has 360 divisors, whose sum is σ = 4708940544. Its totient is φ = 366996096.

The previous prime is 1423802761. The next prime is 1423802801. The reversal of 1423802772 is 2772083241.

1423802772 is a `hidden beast` number, since 1 + 4 + 2 + 380 + 277 + 2 = 666.

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 119 ways as a sum of consecutive naturals, for example, 30293653 + ... + 30293699.

Almost surely, 2^1423802772 is an apocalyptic number.

1423802772 is a gapful number since it is divisible by the number (12) 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 1423802772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354470272).

1423802772 is an abundant number, since it is smaller than the sum of its proper divisors (3285137772).

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

1423802772 is a wasteful number, since it uses less digits than its factorization.

1423802772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1423802772 is about 37733.3111719605. The cubic root of 1423802772 is about 1124.9933226270.

The spelling of 1423802772 in words is "one billion, four hundred twenty-three million, eight hundred two thousand, seven hundred seventy-two".