312220342 has 16 divisors (see below), whose sum is σ = 546624000. Its totient is φ = 130961448.

The previous prime is 312220339. The next prime is 312220357. The reversal of 312220342 is 243022213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236592 + ... + 237907.

It is an arithmetic number, because the mean of its divisors is an integer number (34164000).

Almost surely, 2^312220342 is an apocalyptic number.

312220342 is a deficient number, since it is larger than the sum of its proper divisors (234403658).

312220342 is a wasteful number, since it uses less digits than its factorization.

312220342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474555.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 312220342 is about 17669.7578364843. The cubic root of 312220342 is about 678.4019147733.

Adding to 312220342 its reverse (243022213), we get a palindrome (555242555).

The spelling of 312220342 in words is "three hundred twelve million, two hundred twenty thousand, three hundred forty-two".