1425740 has 12 divisors (see below), whose sum is σ = 2994096. Its totient is φ = 570288.

The previous prime is 1425733. The next prime is 1425757. The reversal of 1425740 is 475241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35624 + ... + 35663.

It is an arithmetic number, because the mean of its divisors is an integer number (249508).

2^1425740 is an apocalyptic number.

1425740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425740 is an abundant number, since it is smaller than the sum of its proper divisors (1568356).

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

1425740 is a wasteful number, since it uses less digits than its factorization.

1425740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71296 (or 71294 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1425740 is about 1194.0435502945. The cubic root of 1425740 is about 112.5503313883.

The spelling of 1425740 in words is "one million, four hundred twenty-five thousand, seven hundred forty".