1400400454 has 4 divisors (see below), whose sum is σ = 2100600684. Its totient is φ = 700200226.

The previous prime is 1400400431. The next prime is 1400400461. The reversal of 1400400454 is 4540040041.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1400400454² = 3922242863126812232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350100112 + ... + 350100115.

It is an arithmetic number, because the mean of its divisors is an integer number (525150171).

Almost surely, 2^1400400454 is an apocalyptic number.

1400400454 is a deficient number, since it is larger than the sum of its proper divisors (700200230).

1400400454 is an equidigital number, since it uses as much as digits as its factorization.

1400400454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700200229.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1400400454 is about 37421.9247767936. The cubic root of 1400400454 is about 1118.7955946421.

Adding to 1400400454 its reverse (4540040041), we get a palindrome (5940440495).

The spelling of 1400400454 in words is "one billion, four hundred million, four hundred thousand, four hundred fifty-four".