1445602421 has 8 divisors (see below), whose sum is σ = 1460692224. Its totient is φ = 1430542080.

The previous prime is 1445602399. The next prime is 1445602471. The reversal of 1445602421 is 1242065441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1445602421 - 2¹⁰ = 1445601397 is a prime.

It is a super-2 number, since 2×1445602421² = 4179532719202122482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445602471) 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, 99221 + ... + 112853.

It is an arithmetic number, because the mean of its divisors is an integer number (182586528).

Almost surely, 2^1445602421 is an apocalyptic number.

It is an amenable number.

1445602421 is a deficient number, since it is larger than the sum of its proper divisors (15089803).

1445602421 is a wasteful number, since it uses less digits than its factorization.

1445602421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14731.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1445602421 is about 38021.0786406698. The cubic root of 1445602421 is about 1130.7058062176.

Adding to 1445602421 its reverse (1242065441), we get a palindrome (2687667862).

The spelling of 1445602421 in words is "one billion, four hundred forty-five million, six hundred two thousand, four hundred twenty-one".