1453021244 has 12 divisors (see below), whose sum is σ = 2543889768. Its totient is φ = 726195600.

The previous prime is 1453021237. The next prime is 1453021253. The reversal of 1453021244 is 4421203541.

It is a super-2 number, since 2×1453021244² = 4222541471030615072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68222 + ... + 86949.

It is an arithmetic number, because the mean of its divisors is an integer number (211990814).

Almost surely, 2^1453021244 is an apocalyptic number.

It is an amenable number.

1453021244 is a deficient number, since it is larger than the sum of its proper divisors (1090868524).

1453021244 is a wasteful number, since it uses less digits than its factorization.

1453021244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157516 (or 157514 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1453021244 is about 38118.5157633400. The cubic root of 1453021244 is about 1132.6367652356.

Adding to 1453021244 its reverse (4421203541), we get a palindrome (5874224785).

The spelling of 1453021244 in words is "one billion, four hundred fifty-three million, twenty-one thousand, two hundred forty-four".