400374071 has 4 divisors (see below), whose sum is σ = 403254600. Its totient is φ = 397493544.

The previous prime is 400374067. The next prime is 400374101. The reversal of 400374071 is 170473004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400374071 - 2² = 400374067 is a prime.

It is a super-3 number, since 3×400374071³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400374071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400374001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440056 + ... + 1440333.

It is an arithmetic number, because the mean of its divisors is an integer number (100813650).

Almost surely, 2^400374071 is an apocalyptic number.

400374071 is a deficient number, since it is larger than the sum of its proper divisors (2880529).

400374071 is a wasteful number, since it uses less digits than its factorization.

400374071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880528.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 400374071 is about 20009.3495896293. The cubic root of 400374071 is about 737.0359097254.

The spelling of 400374071 in words is "four hundred million, three hundred seventy-four thousand, seventy-one".