400737073 has 24 divisors (see below), whose sum is σ = 484003296. Its totient is φ = 327888000.

The previous prime is 400737061. The next prime is 400737091. The reversal of 400737073 is 370737004.

It is not a de Polignac number, because 400737073 - 2⁹ = 400736561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400737173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96898 + ... + 100948.

It is an arithmetic number, because the mean of its divisors is an integer number (20166804).

Almost surely, 2^400737073 is an apocalyptic number.

It is an amenable number.

400737073 is a deficient number, since it is larger than the sum of its proper divisors (83266223).

400737073 is a wasteful number, since it uses less digits than its factorization.

400737073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 400737073 is about 20018.4183441150. The cubic root of 400737073 is about 737.2585887249.

The spelling of 400737073 in words is "four hundred million, seven hundred thirty-seven thousand, seventy-three".