1207420 has 24 divisors (see below), whose sum is σ = 2573424. Its totient is φ = 475776.

The previous prime is 1207417. The next prime is 1207429. The reversal of 1207420 is 247021.

It is a junction number, because it is equal to n+sod(n) for n = 1207394 and 1207403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (107226).

2^1207420 is an apocalyptic number.

1207420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207420 is an abundant number, since it is smaller than the sum of its proper divisors (1366004).

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

1207420 is a wasteful number, since it uses less digits than its factorization.

1207420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1207420 is about 1098.8266469284. The cubic root of 1207420 is about 106.4844327647.

The spelling of 1207420 in words is "one million, two hundred seven thousand, four hundred twenty".