1425017644 has 6 divisors (see below), whose sum is σ = 2493780884. Its totient is φ = 712508820.

The previous prime is 1425017609. The next prime is 1425017677. The reversal of 1425017644 is 4467105241.

It is a super-2 number, since 2×1425017644² = 4061350571422621472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178127202 + ... + 178127209.

Almost surely, 2^1425017644 is an apocalyptic number.

It is an amenable number.

1425017644 is a deficient number, since it is larger than the sum of its proper divisors (1068763240).

1425017644 is a wasteful number, since it uses less digits than its factorization.

1425017644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356254415 (or 356254413 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1425017644 is about 37749.4058761194. The cubic root of 1425017644 is about 1125.3132017508.

The spelling of 1425017644 in words is "one billion, four hundred twenty-five million, seventeen thousand, six hundred forty-four".