1425729660 has 24 divisors (see below), whose sum is σ = 3992043216. Its totient is φ = 380194560.

The previous prime is 1425729659. The next prime is 1425729661. The reversal of 1425729660 is 669275241.

It is an interprime number because it is at equal distance from previous prime (1425729659) and next prime (1425729661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425729661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11881021 + ... + 11881140.

It is an arithmetic number, because the mean of its divisors is an integer number (166335134).

Almost surely, 2^1425729660 is an apocalyptic number.

1425729660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425729660 is an abundant number, since it is smaller than the sum of its proper divisors (2566313556).

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

1425729660 is a wasteful number, since it uses less digits than its factorization.

1425729660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23762173 (or 23762171 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1425729660 is about 37758.8355222986. The cubic root of 1425729660 is about 1125.5005930198.

The spelling of 1425729660 in words is "one billion, four hundred twenty-five million, seven hundred twenty-nine thousand, six hundred sixty".