1400469 has 16 divisors (see below), whose sum is σ = 2179200. Its totient is φ = 799680.

The previous prime is 1400453. The next prime is 1400479. The reversal of 1400469 is 9640041.

It is not a de Polignac number, because 1400469 - 2⁴ = 1400453 is a prime.

It is a super-2 number, since 2×1400469² = 3922626839922, which contains 22 as substring.

1400469 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (136200).

2^1400469 is an apocalyptic number.

It is an amenable number.

1400469 is a deficient number, since it is larger than the sum of its proper divisors (778731).

1400469 is an equidigital number, since it uses as much as digits as its factorization.

1400469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1400469 is about 1183.4141286971. The cubic root of 1400469 is about 111.8813848400.

The spelling of 1400469 in words is "one million, four hundred thousand, four hundred sixty-nine".