1591402 has 8 divisors (see below), whose sum is σ = 2512800. Its totient is φ = 753804.

The previous prime is 1591397. The next prime is 1591417. The reversal of 1591402 is 2041951.

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

It is a zygodrome in base 3.

It is a congruent number.

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, 20902 + ... + 20977.

It is an arithmetic number, because the mean of its divisors is an integer number (314100).

2^1591402 is an apocalyptic number.

1591402 is a deficient number, since it is larger than the sum of its proper divisors (921398).

1591402 is a wasteful number, since it uses less digits than its factorization.

1591402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41900.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1591402 is about 1261.5078279583. The cubic root of 1591402 is about 116.7508272558.

The spelling of 1591402 in words is "one million, five hundred ninety-one thousand, four hundred two".