400734071 has 8 divisors (see below), whose sum is σ = 416778384. Its totient is φ = 384995520.

The previous prime is 400734053. The next prime is 400734097. The reversal of 400734071 is 170437004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400734071 is a prime.

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 400734071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400739071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73766 + ... + 79011.

It is an arithmetic number, because the mean of its divisors is an integer number (52097298).

Almost surely, 2^400734071 is an apocalyptic number.

400734071 is a deficient number, since it is larger than the sum of its proper divisors (16044313).

400734071 is a wasteful number, since it uses less digits than its factorization.

400734071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152881.

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

The square root of 400734071 is about 20018.3433630258. The cubic root of 400734071 is about 737.2567477374.

It can be divided in two parts, 40073 and 4071, that added together give a palindrome (44144).

The spelling of 400734071 in words is "four hundred million, seven hundred thirty-four thousand, seventy-one".