1452890 has 8 divisors (see below), whose sum is σ = 2615220. Its totient is φ = 581152.

The previous prime is 1452863. The next prime is 1452907. The reversal of 1452890 is 982541.

It can be written as a sum of positive squares in 2 ways, for example, as 1256641 + 196249 = 1121^2 + 443^2 .

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

It is a super-2 number, since 2×1452890² = 4221778704200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72635 + ... + 72654.

2^1452890 is an apocalyptic number.

1452890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1452890 is a deficient number, since it is larger than the sum of its proper divisors (1162330).

1452890 is a wasteful number, since it uses less digits than its factorization.

1452890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145296.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1452890 is about 1205.3588677236. The cubic root of 1452890 is about 113.2602662441.

The spelling of 1452890 in words is "one million, four hundred fifty-two thousand, eight hundred ninety".