1453025444 has 12 divisors (see below), whose sum is σ = 2738394204. Its totient is φ = 670627104.

The previous prime is 1453025401. The next prime is 1453025447. The reversal of 1453025444 is 4445203541.

It can be written as a sum of positive squares in 2 ways, for example, as 92891044 + 1360134400 = 9638^2 + 36880^2 .

It is a super-2 number, since 2×1453025444² = 4222565881822794272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1453025444.

It is not an unprimeable number, because it can be changed into a prime (1453025447) 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, 13971347 + ... + 13971450.

It is an arithmetic number, because the mean of its divisors is an integer number (228199517).

Almost surely, 2^1453025444 is an apocalyptic number.

It is an amenable number.

1453025444 is a deficient number, since it is larger than the sum of its proper divisors (1285368760).

1453025444 is a wasteful number, since it uses less digits than its factorization.

1453025444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27942814 (or 27942812 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 1453025444 is about 38118.5708546372. The cubic root of 1453025444 is about 1132.6378565410.

Adding to 1453025444 its reverse (4445203541), we get a palindrome (5898228985).

The spelling of 1453025444 in words is "one billion, four hundred fifty-three million, twenty-five thousand, four hundred forty-four".