1406235391828 has 6 divisors (see below), whose sum is σ = 2460911935706. Its totient is φ = 703117695912.

The previous prime is 1406235391811. The next prime is 1406235391837. The reversal of 1406235391828 is 8281935326041.

It can be written as a sum of positive squares in only one way, i.e., 1230706234384 + 175529157444 = 1109372^2 + 418962^2 .

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, 175779423975 + ... + 175779423982.

Almost surely, 2^{1406235391828} is an apocalyptic number.

It is an amenable number.

1406235391828 is a deficient number, since it is larger than the sum of its proper divisors (1054676543878).

1406235391828 is a wasteful number, since it uses less digits than its factorization.

1406235391828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351558847961 (or 351558847959 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 1406235391828 in words is "one trillion, four hundred six billion, two hundred thirty-five million, three hundred ninety-one thousand, eight hundred twenty-eight".