401212492 has 12 divisors (see below), whose sum is σ = 717060960. Its totient is φ = 196337936.

The previous prime is 401212463. The next prime is 401212507. The reversal of 401212492 is 294212104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066867 + ... + 1067242.

It is an arithmetic number, because the mean of its divisors is an integer number (59755080).

Almost surely, 2^401212492 is an apocalyptic number.

It is an amenable number.

401212492 is a deficient number, since it is larger than the sum of its proper divisors (315848468).

401212492 is a wasteful number, since it uses less digits than its factorization.

401212492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134160 (or 2134158 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 401212492 is about 20030.2893638609. The cubic root of 401212492 is about 737.5500252191.

Adding to 401212492 its reverse (294212104), we get a palindrome (695424596).

The spelling of 401212492 in words is "four hundred one million, two hundred twelve thousand, four hundred ninety-two".