400402034 has 8 divisors (see below), whose sum is σ = 602277120. Its totient is φ = 199642996.

The previous prime is 400402033. The next prime is 400402069. The reversal of 400402034 is 430204004.

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

It is not an unprimeable number, because it can be changed into a prime (400402031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278114 + ... + 279549.

It is an arithmetic number, because the mean of its divisors is an integer number (75284640).

Almost surely, 2^400402034 is an apocalyptic number.

400402034 is a deficient number, since it is larger than the sum of its proper divisors (201875086).

400402034 is a wasteful number, since it uses less digits than its factorization.

400402034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558024.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400402034 is about 20010.0483257787. The cubic root of 400402034 is about 737.0530680587.

Adding to 400402034 its reverse (430204004), we get a palindrome (830606038).

The spelling of 400402034 in words is "four hundred million, four hundred two thousand, thirty-four".