197042724 has 18 divisors (see below), whose sum is σ = 498080310. Its totient is φ = 65680896.

The previous prime is 197042717. The next prime is 197042737. The reversal of 197042724 is 427240791.

197042724 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 67765824 = 11370^2 + 8232^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-4 number, since 4×197042724⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5473409 = 197042724 / (1 + 9 + 7 + 0 + 4 + 2 + 7 + 2 + 4).

197042724 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2736669 + ... + 2736740.

Almost surely, 2^197042724 is an apocalyptic number.

It is an amenable number.

197042724 is an abundant number, since it is smaller than the sum of its proper divisors (301037586).

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

197042724 is a wasteful number, since it uses less digits than its factorization.

197042724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473419 (or 5473414 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 197042724 is about 14037.1907445899. The cubic root of 197042724 is about 581.9068473152.

The spelling of 197042724 in words is "one hundred ninety-seven million, forty-two thousand, seven hundred twenty-four".