1245402 has 16 divisors (see below), whose sum is σ = 2767680. Its totient is φ = 415116.

The previous prime is 1245401. The next prime is 1245421. The reversal of 1245402 is 2045421.

1245402 is a `hidden beast` number, since 124 + 540 + 2 = 666.

It is a super-2 number, since 2×1245402² = 3102052283208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11478 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (172980).

2^1245402 is an apocalyptic number.

1245402 is an abundant number, since it is smaller than the sum of its proper divisors (1522278).

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

1245402 is a wasteful number, since it uses less digits than its factorization.

1245402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23074 (or 23068 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1245402 is about 1115.9758061894. The cubic root of 1245402 is about 107.5894910113.

The spelling of 1245402 in words is "one million, two hundred forty-five thousand, four hundred two".