11428590 has 32 divisors (see below), whose sum is σ = 29043360. Its totient is φ = 2868224.

The previous prime is 11428559. The next prime is 11428591. The reversal of 11428590 is 9582411.

It is a happy number.

It is a super-2 number, since 2×11428590² = 261225338776200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10695 + ... + 11714.

It is an arithmetic number, because the mean of its divisors is an integer number (907605).

Almost surely, 2^11428590 is an apocalyptic number.

11428590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11428590 is an abundant number, since it is smaller than the sum of its proper divisors (17614770).

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

11428590 is a wasteful number, since it uses less digits than its factorization.

11428590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22436.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 11428590 is about 3380.6197656643. The cubic root of 11428590 is about 225.2496980988.

The spelling of 11428590 in words is "eleven million, four hundred twenty-eight thousand, five hundred ninety".