3620021457 has 16 divisors (see below), whose sum is σ = 5275565120. Its totient is φ = 2194454592.

The previous prime is 3620021453. The next prime is 3620021467. The reversal of 3620021457 is 7541200263.

3620021457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3620021457 - 2² = 3620021453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3620021453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690082 + ... + 695307.

It is an arithmetic number, because the mean of its divisors is an integer number (329722820).

Almost surely, 2^3620021457 is an apocalyptic number.

It is an amenable number.

3620021457 is a deficient number, since it is larger than the sum of its proper divisors (1655543663).

3620021457 is a wasteful number, since it uses less digits than its factorization.

3620021457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385472.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 3620021457 is about 60166.6141394046. The cubic root of 3620021457 is about 1535.4548418506.

The spelling of 3620021457 in words is "three billion, six hundred twenty million, twenty-one thousand, four hundred fifty-seven".