1453940 has 24 divisors (see below), whose sum is σ = 3081120. Its totient is φ = 576288.

The previous prime is 1453939. The next prime is 1453943. The reversal of 1453940 is 493541.

It is a super-2 number, since 2×1453940² = 4227883047200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453943) 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, 2519 + ... + 3041.

It is an arithmetic number, because the mean of its divisors is an integer number (128380).

2^1453940 is an apocalyptic number.

1453940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453940 is an abundant number, since it is smaller than the sum of its proper divisors (1627180).

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

1453940 is a wasteful number, since it uses less digits than its factorization.

1453940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1453940 is about 1205.7943439907. The cubic root of 1453940 is about 113.2875439785.

The spelling of 1453940 in words is "one million, four hundred fifty-three thousand, nine hundred forty".