73742090 has 16 divisors (see below), whose sum is σ = 140544072. Its totient is φ = 27761664.

The previous prime is 73742083. The next prime is 73742101. The reversal of 73742090 is 9024737.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51998521 + 21743569 = 7211^2 + 4663^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216719 + ... + 217058.

Almost surely, 2^73742090 is an apocalyptic number.

73742090 is a deficient number, since it is larger than the sum of its proper divisors (66801982).

73742090 is a wasteful number, since it uses less digits than its factorization.

73742090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433801.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 73742090 is about 8587.3214683043. The cubic root of 73742090 is about 419.3453330663.

The spelling of 73742090 in words is "seventy-three million, seven hundred forty-two thousand, ninety".