400011962 has 16 divisors (see below), whose sum is σ = 687336192. Its totient is φ = 171033360.

The previous prime is 400011961. The next prime is 400011967. The reversal of 400011962 is 269110004.

It is a happy number.

It is a super-3 number, since 3×400011962³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (400011961) 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 7 ways as a sum of consecutive naturals, for example, 27113 + ... + 39180.

It is an arithmetic number, because the mean of its divisors is an integer number (42958512).

Almost surely, 2^400011962 is an apocalyptic number.

400011962 is a deficient number, since it is larger than the sum of its proper divisors (287324230).

400011962 is a wasteful number, since it uses less digits than its factorization.

400011962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66733.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 400011962 is about 20000.2990477643. The cubic root of 400011962 is about 736.8136443857.

Adding to 400011962 its reverse (269110004), we get a palindrome (669121966).

The spelling of 400011962 in words is "four hundred million, eleven thousand, nine hundred sixty-two".