73461290 has 24 divisors (see below), whose sum is σ = 153819972. Its totient is φ = 25186560.

The previous prime is 73461281. The next prime is 73461331. The reversal of 73461290 is 9216437.

It can be written as a sum of positive squares in 2 ways, for example, as 73290721 + 170569 = 8561^2 + 413^2 .

It is a super-2 number, since 2×73461290² = 10793122256928200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74471 + ... + 75450.

Almost surely, 2^73461290 is an apocalyptic number.

73461290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73461290 is an abundant number, since it is smaller than the sum of its proper divisors (80358682).

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

73461290 is a wasteful number, since it uses less digits than its factorization.

73461290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149942 (or 149935 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 73461290 is about 8570.9561893642. The cubic root of 73461290 is about 418.8123857450.

The spelling of 73461290 in words is "seventy-three million, four hundred sixty-one thousand, two hundred ninety".