1149420 has 24 divisors (see below), whose sum is σ = 3218544. Its totient is φ = 306496.

The previous prime is 1149413. The next prime is 1149427. The reversal of 1149420 is 249411.

It is an interprime number because it is at equal distance from previous prime (1149413) and next prime (1149427).

It is not an unprimeable number, because it can be changed into a prime (1149427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9519 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (134106).

2^1149420 is an apocalyptic number.

1149420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1149420 is an abundant number, since it is smaller than the sum of its proper divisors (2069124).

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

1149420 is a wasteful number, since it uses less digits than its factorization.

1149420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19169 (or 19167 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1149420 is about 1072.1100689761. The cubic root of 1149420 is about 104.7513390236.

Subtracting from 1149420 its reverse (249411), we obtain a palindrome (900009).

The spelling of 1149420 in words is "one million, one hundred forty-nine thousand, four hundred twenty".