1272402 has 16 divisors (see below), whose sum is σ = 2827680. Its totient is φ = 424116.

The previous prime is 1272379. The next prime is 1272409. The reversal of 1272402 is 2042721.

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

It is not an unprimeable number, because it can be changed into a prime (1272409) 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, 11728 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (176730).

2^1272402 is an apocalyptic number.

1272402 is an abundant number, since it is smaller than the sum of its proper divisors (1555278).

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

1272402 is a wasteful number, since it uses less digits than its factorization.

1272402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23574 (or 23568 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1272402 is about 1128.0079786952. The cubic root of 1272402 is about 108.3614433301.

Subtracting from 1272402 its sum of digits (18), we obtain a square (1272384 = 1128²).

The spelling of 1272402 in words is "one million, two hundred seventy-two thousand, four hundred two".