1400416 has 24 divisors (see below), whose sum is σ = 2789640. Its totient is φ = 691968.

The previous prime is 1400411. The next prime is 1400417. The reversal of 1400416 is 6140041.

It is a happy number.

It is a super-2 number, since 2×1400416² = 3922329946112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a self number, because there is not a number n which added to its sum of digits gives 1400416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400411) 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, 3220 + ... + 3628.

It is an arithmetic number, because the mean of its divisors is an integer number (116235).

2^1400416 is an apocalyptic number.

1400416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1400416 is a deficient number, since it is larger than the sum of its proper divisors (1389224).

1400416 is a wasteful number, since it uses less digits than its factorization.

1400416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1400416 is about 1183.3917356480. The cubic root of 1400416 is about 111.8799734585.

Adding to 1400416 its reverse (6140041), we get a palindrome (7540457).

The spelling of 1400416 in words is "one million, four hundred thousand, four hundred sixteen".