1406977628 has 48 divisors (see below), whose sum is σ = 2866053120. Its totient is φ = 591929856.

The previous prime is 1406977619. The next prime is 1406977633. The reversal of 1406977628 is 8267796041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342893 + ... + 346971.

It is an arithmetic number, because the mean of its divisors is an integer number (59709440).

Almost surely, 2^1406977628 is an apocalyptic number.

It is an amenable number.

1406977628 is an abundant number, since it is smaller than the sum of its proper divisors (1459075492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406977628 is a wasteful number, since it uses less digits than its factorization.

1406977628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 1406977628 is about 37509.7004520164. The cubic root of 1406977628 is about 1120.5443856514.

The spelling of 1406977628 in words is "one billion, four hundred six million, nine hundred seventy-seven thousand, six hundred twenty-eight".