1400754981 has 8 divisors (see below), whose sum is σ = 1886928064. Its totient is φ = 924209280.

The previous prime is 1400754919. The next prime is 1400755003. The reversal of 1400754981 is 1894570041.

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

It is not a de Polignac number, because 1400754981 - 2⁹ = 1400754469 is a prime.

It is a super-2 number, since 2×1400754981² = 3924229033592620722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400754581) 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, 2406505 + ... + 2407086.

It is an arithmetic number, because the mean of its divisors is an integer number (235866008).

Almost surely, 2^1400754981 is an apocalyptic number.

It is an amenable number.

1400754981 is a deficient number, since it is larger than the sum of its proper divisors (486173083).

1400754981 is an equidigital number, since it uses as much as digits as its factorization.

1400754981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813691.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1400754981 is about 37426.6613659300. The cubic root of 1400754981 is about 1118.8899985387.

The spelling of 1400754981 in words is "one billion, four hundred million, seven hundred fifty-four thousand, nine hundred eighty-one".