74209012 has 24 divisors (see below), whose sum is σ = 137768904. Its totient is φ = 34854912.

The previous prime is 74208997. The next prime is 74209027. The reversal of 74209012 is 21090247.

It is an interprime number because it is at equal distance from previous prime (74208997) and next prime (74209027).

It can be written as a sum of positive squares in 4 ways, for example, as 18198756 + 56010256 = 4266^2 + 7484^2 .

It is a super-2 number, since 2×74209012² = 11013954924032288, which contains 22 as substring.

It is a congruent number.

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, 65878 + ... + 66994.

It is an arithmetic number, because the mean of its divisors is an integer number (5740371).

Almost surely, 2^74209012 is an apocalyptic number.

It is an amenable number.

74209012 is a deficient number, since it is larger than the sum of its proper divisors (63559892).

74209012 is a wasteful number, since it uses less digits than its factorization.

74209012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 74209012 is about 8614.4652764986. The cubic root of 74209012 is about 420.2285453034.

Adding to 74209012 its reverse (21090247), we get a palindrome (95299259).

The spelling of 74209012 in words is "seventy-four million, two hundred nine thousand, twelve".