1390461 has 8 divisors (see below), whose sum is σ = 1861920. Its totient is φ = 922992.

The previous prime is 1390457. The next prime is 1390469. The reversal of 1390461 is 1640931.

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

It is not a de Polignac number, because 1390461 - 2² = 1390457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390469) 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, 55 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (232740).

2^1390461 is an apocalyptic number.

It is an amenable number.

1390461 is a deficient number, since it is larger than the sum of its proper divisors (471459).

1390461 is a wasteful number, since it uses less digits than its factorization.

1390461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1390461 is about 1179.1781035959. The cubic root of 1390461 is about 111.6142393927.

The spelling of 1390461 in words is "one million, three hundred ninety thousand, four hundred sixty-one".