1245880 has 16 divisors (see below), whose sum is σ = 2803320. Its totient is φ = 498336.

The previous prime is 1245877. The next prime is 1245883. The reversal of 1245880 is 885421.

It is an interprime number because it is at equal distance from previous prime (1245877) and next prime (1245883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245883) 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, 15534 + ... + 15613.

2^1245880 is an apocalyptic number.

1245880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245880 is an abundant number, since it is smaller than the sum of its proper divisors (1557440).

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

1245880 is a wasteful number, since it uses less digits than its factorization.

1245880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31158 (or 31154 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1245880 is about 1116.1899479927. The cubic root of 1245880 is about 107.6032539565.

The spelling of 1245880 in words is "one million, two hundred forty-five thousand, eight hundred eighty".