1427401 has 2 divisors, whose sum is σ = 1427402. Its totient is φ = 1427400.

The previous prime is 1427399. The next prime is 1427407. The reversal of 1427401 is 1047241.

1427401 = T₉₇₄ + T₉₇₅ + T₉₇₆.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1263376 + 164025 = 1124^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427401 - 2¹ = 1427399 is a prime.

It is a super-2 number, since 2×1427401² = 4074947229602, which contains 22 as substring.

Together with 1427399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1427407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713700 + 713701.

It is an arithmetic number, because the mean of its divisors is an integer number (713701).

2^1427401 is an apocalyptic number.

1427401 is the 976-th centered triangular number.

It is an amenable number.

1427401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427401 is an equidigital number, since it uses as much as digits as its factorization.

1427401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1427401 is about 1194.7388836060. The cubic root of 1427401 is about 112.5940218110.

The spelling of 1427401 in words is "one million, four hundred twenty-seven thousand, four hundred one".