1245630 has 16 divisors (see below), whose sum is σ = 2989584. Its totient is φ = 332160.

The previous prime is 1245623. The next prime is 1245649. The reversal of 1245630 is 365421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1245597 and 1245606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20731 + ... + 20790.

It is an arithmetic number, because the mean of its divisors is an integer number (186849).

2^1245630 is an apocalyptic number.

1245630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1245630 is an abundant number, since it is smaller than the sum of its proper divisors (1743954).

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

1245630 is a wasteful number, since it uses less digits than its factorization.

1245630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41531.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1245630 is about 1116.0779542666. The cubic root of 1245630 is about 107.5960562026.

It can be divided in two parts, 12456 and 30, that multiplied together give a triangular number (373680 = T₈₆₄).

The spelling of 1245630 in words is "one million, two hundred forty-five thousand, six hundred thirty".