1429136280 has 768 divisors, whose sum is σ = 6113802240. Its totient is φ = 283852800.

The previous prime is 1429136273. The next prime is 1429136311. The reversal of 1429136280 is 826319241.

1429136280 is a `hidden beast` number, since 1 + 4 + 29 + 1 + 3 + 628 + 0 = 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 191 ways as a sum of consecutive naturals, for example, 20128645 + ... + 20128715.

It is an arithmetic number, because the mean of its divisors is an integer number (7960680).

Almost surely, 2^1429136280 is an apocalyptic number.

1429136280 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 1429136280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3056901120).

1429136280 is an abundant number, since it is smaller than the sum of its proper divisors (4684665960).

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

1429136280 is a wasteful number, since it uses less digits than its factorization.

1429136280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1429136280 is about 37803.9188444796. The cubic root of 1429136280 is about 1126.3962988530.

The spelling of 1429136280 in words is "one billion, four hundred twenty-nine million, one hundred thirty-six thousand, two hundred eighty".