1401744465 has 36 divisors (see below), whose sum is σ = 2670661812. Its totient is φ = 679631040.

The previous prime is 1401744439. The next prime is 1401744473. The reversal of 1401744465 is 5644471041.

It is a happy number.

1401744465 is a `hidden beast` number, since 1 + 40 + 174 + 446 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 640646721 + 761097744 = 25311^2 + 27588^2 .

It is not a de Polignac number, because 1401744465 - 2⁵ = 1401744433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123274 + ... + 134163.

Almost surely, 2^1401744465 is an apocalyptic number.

1401744465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401744465 is a deficient number, since it is larger than the sum of its proper divisors (1268917347).

1401744465 is a wasteful number, since it uses less digits than its factorization.

1401744465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257470 (or 257456 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1401744465 is about 37439.8780046089. The cubic root of 1401744465 is about 1119.1533953450.

The spelling of 1401744465 in words is "one billion, four hundred one million, seven hundred forty-four thousand, four hundred sixty-five".