1401550407 has 12 divisors (see below), whose sum is σ = 2032162704. Its totient is φ = 930812640.

The previous prime is 1401550351. The next prime is 1401550427. The reversal of 1401550407 is 7040551041.

It is a happy number.

1401550407 is a `hidden beast` number, since 140 + 15 + 504 + 0 + 7 = 666.

It is not a de Polignac number, because 1401550407 - 2⁷ = 1401550279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401550427) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 293694 + ... + 298427.

It is an arithmetic number, because the mean of its divisors is an integer number (169346892).

Almost surely, 2^1401550407 is an apocalyptic number.

1401550407 is a deficient number, since it is larger than the sum of its proper divisors (630612297).

1401550407 is a wasteful number, since it uses less digits than its factorization.

1401550407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592390 (or 592387 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 1401550407 is about 37437.2863199244. The cubic root of 1401550407 is about 1119.1017476308.

The spelling of 1401550407 in words is "one billion, four hundred one million, five hundred fifty thousand, four hundred seven".