830521372 has 48 divisors (see below), whose sum is σ = 1568689920. Its totient is φ = 383846400.

The previous prime is 830521361. The next prime is 830521429. The reversal of 830521372 is 273125038.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347622 + ... + 350002.

It is an arithmetic number, because the mean of its divisors is an integer number (32681040).

Almost surely, 2^830521372 is an apocalyptic number.

It is an amenable number.

830521372 is a deficient number, since it is larger than the sum of its proper divisors (738168548).

830521372 is a wasteful number, since it uses less digits than its factorization.

830521372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2540 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 830521372 is about 28818.7677043971. The cubic root of 830521372 is about 939.9763733310.

The spelling of 830521372 in words is "eight hundred thirty million, five hundred twenty-one thousand, three hundred seventy-two".