1400451 has 16 divisors (see below), whose sum is σ = 2032800. Its totient is φ = 852480.

The previous prime is 1400449. The next prime is 1400453. The reversal of 1400451 is 1540041.

It is an interprime number because it is at equal distance from previous prime (1400449) and next prime (1400453).

It is not a de Polignac number, because 1400451 - 2¹ = 1400449 is a prime.

It is a super-2 number, since 2×1400451² = 3922526006802, which contains 22 as substring.

It is an Ulam number.

1400451 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400451.

It is not an unprimeable number, because it can be changed into a prime (1400453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5691 + ... + 5931.

It is an arithmetic number, because the mean of its divisors is an integer number (127050).

2^1400451 is an apocalyptic number.

1400451 is a deficient number, since it is larger than the sum of its proper divisors (632349).

1400451 is a wasteful number, since it uses less digits than its factorization.

1400451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1400451 is about 1183.4065235582. The cubic root of 1400451 is about 111.8809055068.

Adding to 1400451 its reverse (1540041), we get a palindrome (2940492).

The spelling of 1400451 in words is "one million, four hundred thousand, four hundred fifty-one".