1400840051 has 8 divisors (see below), whose sum is σ = 1533328944. Its totient is φ = 1271884320.

The previous prime is 1400840033. The next prime is 1400840057. The reversal of 1400840051 is 1500480041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400840051 - 2¹⁸ = 1400577907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400839999 and 1400840026.

It is not an unprimeable number, because it can be changed into a prime (1400840057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882461 + ... + 884046.

It is an arithmetic number, because the mean of its divisors is an integer number (191666118).

Almost surely, 2^1400840051 is an apocalyptic number.

1400840051 is a deficient number, since it is larger than the sum of its proper divisors (132488893).

1400840051 is a wasteful number, since it uses less digits than its factorization.

1400840051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766581.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1400840051 is about 37427.7978379706. The cubic root of 1400840051 is about 1118.9126487158.

The spelling of 1400840051 in words is "one billion, four hundred million, eight hundred forty thousand, fifty-one".