845213372 has 6 divisors (see below), whose sum is σ = 1479123408. Its totient is φ = 422606684.

The previous prime is 845213351. The next prime is 845213387. The reversal of 845213372 is 273312548.

It is a super-2 number, since 2×845213372² = 1428771288415220768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105651668 + ... + 105651675.

It is an arithmetic number, because the mean of its divisors is an integer number (246520568).

Almost surely, 2^845213372 is an apocalyptic number.

It is an amenable number.

845213372 is a deficient number, since it is larger than the sum of its proper divisors (633910036).

845213372 is a wasteful number, since it uses less digits than its factorization.

845213372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211303347 (or 211303345 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 845213372 is about 29072.5535858135. The cubic root of 845213372 is about 945.4867632165.

The spelling of 845213372 in words is "eight hundred forty-five million, two hundred thirteen thousand, three hundred seventy-two".