830390152 has 8 divisors (see below), whose sum is σ = 1556981550. Its totient is φ = 415195072.

The previous prime is 830390069. The next prime is 830390153. The reversal of 830390152 is 251093038.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 809174916 + 21215236 = 28446^2 + 4606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (830390153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51899377 + ... + 51899392.

Almost surely, 2^830390152 is an apocalyptic number.

It is an amenable number.

830390152 is a deficient number, since it is larger than the sum of its proper divisors (726591398).

830390152 is a wasteful number, since it uses less digits than its factorization.

830390152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103798775 (or 103798771 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 830390152 is about 28816.4909730522. The cubic root of 830390152 is about 939.9268661979.

The spelling of 830390152 in words is "eight hundred thirty million, three hundred ninety thousand, one hundred fifty-two".