1427435280 has 120 divisors (see below), whose sum is σ = 4807370880. Its totient is φ = 379572480.

The previous prime is 1427435263. The next prime is 1427435293. The reversal of 1427435280 is 825347241.

It is a happy number.

1427435280 is a `hidden beast` number, since 142 + 7 + 435 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270265 + ... + 275495.

It is an arithmetic number, because the mean of its divisors is an integer number (40061424).

Almost surely, 2^1427435280 is an apocalyptic number.

1427435280 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 1427435280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403685440).

1427435280 is an abundant number, since it is smaller than the sum of its proper divisors (3379935600).

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

1427435280 is a wasteful number, since it uses less digits than its factorization.

1427435280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1427435280 is about 37781.4144785502. The cubic root of 1427435280 is about 1125.9492314426.

The spelling of 1427435280 in words is "one billion, four hundred twenty-seven million, four hundred thirty-five thousand, two hundred eighty".