207997450 has 48 divisors (see below), whose sum is σ = 400688640. Its totient is φ = 80277120.

The previous prime is 207997429. The next prime is 207997453. The reversal of 207997450 is 54799702.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 207997397 and 207997406.

It is not an unprimeable number, because it can be changed into a prime (207997453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190807 + ... + 191893.

It is an arithmetic number, because the mean of its divisors is an integer number (8347680).

Almost surely, 2^207997450 is an apocalyptic number.

207997450 is a deficient number, since it is larger than the sum of its proper divisors (192691190).

207997450 is a wasteful number, since it uses less digits than its factorization.

207997450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 207997450 is about 14422.1166962412. The cubic root of 207997450 is about 592.4967924008.

The spelling of 207997450 in words is "two hundred seven million, nine hundred ninety-seven thousand, four hundred fifty".