1492391 has 8 divisors (see below), whose sum is σ = 1543104. Its totient is φ = 1442560.

The previous prime is 1492357. The next prime is 1492411. The reversal of 1492391 is 1932941.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1492391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492331) 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, 5171 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (192888).

2^1492391 is an apocalyptic number.

1492391 is a deficient number, since it is larger than the sum of its proper divisors (50713).

1492391 is a wasteful number, since it uses less digits than its factorization.

1492391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its digits is 1944, while the sum is 29.

The square root of 1492391 is about 1221.6345607423. The cubic root of 1492391 is about 114.2775375846.

The spelling of 1492391 in words is "one million, four hundred ninety-two thousand, three hundred ninety-one".