311780046 has 16 divisors (see below), whose sum is σ = 636827904. Its totient is φ = 101715384.

The previous prime is 311780039. The next prime is 311780059. The reversal of 311780046 is 640087113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311779995 and 311780022.

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, 552520 + ... + 553083.

It is an arithmetic number, because the mean of its divisors is an integer number (39801744).

Almost surely, 2^311780046 is an apocalyptic number.

311780046 is an abundant number, since it is smaller than the sum of its proper divisors (325047858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311780046 is a wasteful number, since it uses less digits than its factorization.

311780046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105655.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 311780046 is about 17657.2944133579. The cubic root of 311780046 is about 678.0828685442.

The spelling of 311780046 in words is "three hundred eleven million, seven hundred eighty thousand, forty-six".