1255402 has 8 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 617004.

The previous prime is 1255393. The next prime is 1255421. The reversal of 1255402 is 2045521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1255402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5202 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

2^1255402 is an apocalyptic number.

1255402 is a deficient number, since it is larger than the sum of its proper divisors (659798).

1255402 is a wasteful number, since it uses less digits than its factorization.

1255402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10700.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1255402 is about 1120.4472321355. The cubic root of 1255402 is about 107.8766882487.

It can be divided in two parts, 1255 and 402, that multiplied together give a triangular number (504510 = T₁₀₀₄).

The spelling of 1255402 in words is "one million, two hundred fifty-five thousand, four hundred two".