1455940 has 12 divisors (see below), whose sum is σ = 3057516. Its totient is φ = 582368.

The previous prime is 1455929. The next prime is 1455941. The reversal of 1455940 is 495541.

It can be written as a sum of positive squares in 2 ways, for example, as 695556 + 760384 = 834^2 + 872^2 .

It is a super-2 number, since 2×1455940² = 4239522567200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1455899 and 1455908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36379 + ... + 36418.

It is an arithmetic number, because the mean of its divisors is an integer number (254793).

2^1455940 is an apocalyptic number.

1455940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455940 is an abundant number, since it is smaller than the sum of its proper divisors (1601576).

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

1455940 is a wasteful number, since it uses less digits than its factorization.

1455940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72806 (or 72804 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1455940 is about 1206.6233878058. The cubic root of 1455940 is about 113.3394652584.

The spelling of 1455940 in words is "one million, four hundred fifty-five thousand, nine hundred forty".