73149400 has 24 divisors (see below), whose sum is σ = 170072820. Its totient is φ = 29259680.

The previous prime is 73149379. The next prime is 73149409. The reversal of 73149400 is 494137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73149409) by changing a digit.

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, 182674 + ... + 183073.

Almost surely, 2^73149400 is an apocalyptic number.

It is an amenable number.

73149400 is an abundant number, since it is smaller than the sum of its proper divisors (96923420).

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

73149400 is a wasteful number, since it uses less digits than its factorization.

73149400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365763 (or 365754 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 73149400 is about 8552.7422502961. The cubic root of 73149400 is about 418.2188364434.

The spelling of 73149400 in words is "seventy-three million, one hundred forty-nine thousand, four hundred".