11023870 has 48 divisors (see below), whose sum is σ = 23479632. Its totient is φ = 3694080.

The previous prime is 11023861. The next prime is 11023907. The reversal of 11023870 is 7832011.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18294 + ... + 18886.

It is an arithmetic number, because the mean of its divisors is an integer number (489159).

Almost surely, 2^11023870 is an apocalyptic number.

11023870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11023870 is an abundant number, since it is smaller than the sum of its proper divisors (12455762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11023870 is a wasteful number, since it uses less digits than its factorization.

11023870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 11023870 is about 3320.2213781614. The cubic root of 11023870 is about 222.5587607291.

Adding to 11023870 its reverse (7832011), we get a palindrome (18855881).

It can be divided in two parts, 11023 and 870, that multiplied together give a triangular number (9590010 = T₄₃₇₉).

The spelling of 11023870 in words is "eleven million, twenty-three thousand, eight hundred seventy".