1400067 has 12 divisors (see below), whose sum is σ = 2050984. Its totient is φ = 920160.

The previous prime is 1400051. The next prime is 1400081. The reversal of 1400067 is 7600041.

It is not a de Polignac number, because 1400067 - 2⁴ = 1400051 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409 + ... + 1722.

2^1400067 is an apocalyptic number.

1400067 is a deficient number, since it is larger than the sum of its proper divisors (650917).

1400067 is a wasteful number, since it uses less digits than its factorization.

1400067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1400067 is about 1183.2442689487. The cubic root of 1400067 is about 111.8706787549.

The spelling of 1400067 in words is "one million, four hundred thousand, sixty-seven".