1400680549 has 8 divisors (see below), whose sum is σ = 1410851520. Its totient is φ = 1390536000.

The previous prime is 1400680543. The next prime is 1400680553. The reversal of 1400680549 is 9450860041.

It is a happy number.

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 1400680549 - 2⁵ = 1400680517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400680543) 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, 106749 + ... + 119149.

It is an arithmetic number, because the mean of its divisors is an integer number (176356440).

Almost surely, 2^1400680549 is an apocalyptic number.

It is an amenable number.

1400680549 is a deficient number, since it is larger than the sum of its proper divisors (10170971).

1400680549 is a wasteful number, since it uses less digits than its factorization.

1400680549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1400680549 is about 37425.6669813645. Note that the first 3 decimals coincide. The cubic root of 1400680549 is about 1118.8701800130.

The spelling of 1400680549 in words is "one billion, four hundred million, six hundred eighty thousand, five hundred forty-nine".