1425433680 has 320 divisors, whose sum is σ = 5672851200. Its totient is φ = 325140480.

The previous prime is 1425433679. The next prime is 1425433693. The reversal of 1425433680 is 863345241.

1425433680 is a `hidden beast` number, since 1 + 4 + 2 + 543 + 36 + 80 = 666.

It is a super-2 number, since 2×1425433680² = 4063722352156684800, which contains 22 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 63 ways as a sum of consecutive naturals, for example, 402156 + ... + 405684.

It is an arithmetic number, because the mean of its divisors is an integer number (17727660).

Almost surely, 2^1425433680 is an apocalyptic number.

1425433680 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 1425433680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2836425600).

1425433680 is an abundant number, since it is smaller than the sum of its proper divisors (4247417520).

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

1425433680 is a wasteful number, since it uses less digits than its factorization.

1425433680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1425433680 is about 37754.9159713010. The cubic root of 1425433680 is about 1125.4227033773.

The spelling of 1425433680 in words is "one billion, four hundred twenty-five million, four hundred thirty-three thousand, six hundred eighty".