1497940 has 12 divisors (see below), whose sum is σ = 3145716. Its totient is φ = 599168.

The previous prime is 1497911. The next prime is 1497949. The reversal of 1497940 is 497941.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 1336336 = 402^2 + 1156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1497896 and 1497905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497949) 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, 37429 + ... + 37468.

It is an arithmetic number, because the mean of its divisors is an integer number (262143).

2^1497940 is an apocalyptic number.

1497940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1497940 is an abundant number, since it is smaller than the sum of its proper divisors (1647776).

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

1497940 is a wasteful number, since it uses less digits than its factorization.

1497940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74906 (or 74904 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1497940 is about 1223.9035909744. The cubic root of 1497940 is about 114.4189977741.

Subtracting from 1497940 its reverse (497941), we obtain a palindrome (999999).

The spelling of 1497940 in words is "one million, four hundred ninety-seven thousand, nine hundred forty".