74274842 has 4 divisors (see below), whose sum is σ = 111412266. Its totient is φ = 37137420.

The previous prime is 74274841. The next prime is 74274869. The reversal of 74274842 is 24847247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71588521 + 2686321 = 8461^2 + 1639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74274796 and 74274805.

It is not an unprimeable number, because it can be changed into a prime (74274841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18568709 + ... + 18568712.

Almost surely, 2^74274842 is an apocalyptic number.

74274842 is a deficient number, since it is larger than the sum of its proper divisors (37137424).

74274842 is a wasteful number, since it uses less digits than its factorization.

74274842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37137423.

The product of its digits is 100352, while the sum is 38.

The square root of 74274842 is about 8618.2853283005. The cubic root of 74274842 is about 420.3527686215.

The spelling of 74274842 in words is "seventy-four million, two hundred seventy-four thousand, eight hundred forty-two".