1421825656 has 16 divisors (see below), whose sum is σ = 2666449800. Its totient is φ = 710772384.

The previous prime is 1421825653. The next prime is 1421825663. The reversal of 1421825656 is 6565281241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421825653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34575 + ... + 63553.

Almost surely, 2^1421825656 is an apocalyptic number.

It is an amenable number.

1421825656 is a deficient number, since it is larger than the sum of its proper divisors (1244624144).

1421825656 is a wasteful number, since it uses less digits than its factorization.

1421825656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35118 (or 35114 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 1421825656 is about 37707.1035217504. The cubic root of 1421825656 is about 1124.4723533194.

The spelling of 1421825656 in words is "one billion, four hundred twenty-one million, eight hundred twenty-five thousand, six hundred fifty-six".