1290452 has 6 divisors (see below), whose sum is σ = 2258298. Its totient is φ = 645224.

The previous prime is 1290439. The next prime is 1290463. The reversal of 1290452 is 2540921.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 217156 = 1036^2 + 466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161303 + ... + 161310.

It is an arithmetic number, because the mean of its divisors is an integer number (376383).

2^1290452 is an apocalyptic number.

It is an amenable number.

1290452 is a deficient number, since it is larger than the sum of its proper divisors (967846).

1290452 is a wasteful number, since it uses less digits than its factorization.

1290452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322617 (or 322615 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1290452 is about 1135.9806336377. The cubic root of 1290452 is about 108.8714361094.

The spelling of 1290452 in words is "one million, two hundred ninety thousand, four hundred fifty-two".