1407381 has 4 divisors (see below), whose sum is σ = 1876512. Its totient is φ = 938252.

The previous prime is 1407361. The next prime is 1407383. The reversal of 1407381 is 1837041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1407381 - 2⁶ = 1407317 is a prime.

It is a super-2 number, since 2×1407381² = 3961442558322, which contains 22 as substring.

It is a D-number.

1407381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234561 + ... + 234566.

It is an arithmetic number, because the mean of its divisors is an integer number (469128).

2^1407381 is an apocalyptic number.

It is an amenable number.

1407381 is a deficient number, since it is larger than the sum of its proper divisors (469131).

1407381 is an equidigital number, since it uses as much as digits as its factorization.

1407381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469130.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1407381 is about 1186.3308981899. The cubic root of 1407381 is about 112.0651459859.

The spelling of 1407381 in words is "one million, four hundred seven thousand, three hundred eighty-one".