11457890 has 8 divisors (see below), whose sum is σ = 20624220. Its totient is φ = 4583152.

The previous prime is 11457889. The next prime is 11457937. The reversal of 11457890 is 9875411.

It can be written as a sum of positive squares in 2 ways, for example, as 11363641 + 94249 = 3371^2 + 307^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11457890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572885 + ... + 572904.

Almost surely, 2^11457890 is an apocalyptic number.

11457890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11457890 is a deficient number, since it is larger than the sum of its proper divisors (9166330).

11457890 is a wasteful number, since it uses less digits than its factorization.

11457890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145796.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 11457890 is about 3384.9505166250. The cubic root of 11457890 is about 225.4420281556.

The spelling of 11457890 in words is "eleven million, four hundred fifty-seven thousand, eight hundred ninety".