71498450 has 12 divisors (see below), whose sum is σ = 132987210. Its totient is φ = 28599360.

The previous prime is 71498429. The next prime is 71498473. The reversal of 71498450 is 5489417.

It can be written as a sum of positive squares in 3 ways, for example, as 36084049 + 35414401 = 6007^2 + 5951^2 .

It is a super-2 number, since 2×71498450² = 10224056704805000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 714935 + ... + 715034.

Almost surely, 2^71498450 is an apocalyptic number.

71498450 is a deficient number, since it is larger than the sum of its proper divisors (61488760).

71498450 is a wasteful number, since it uses less digits than its factorization.

71498450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429981 (or 1429976 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 71498450 is about 8455.6756087258. The cubic root of 71498450 is about 415.0485258010.

The spelling of 71498450 in words is "seventy-one million, four hundred ninety-eight thousand, four hundred fifty".