74263620 has 24 divisors (see below), whose sum is σ = 207938304. Its totient is φ = 19803616.

The previous prime is 74263603. The next prime is 74263627. The reversal of 74263620 is 2636247.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (74263627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618804 + ... + 618923.

It is an arithmetic number, because the mean of its divisors is an integer number (8664096).

Almost surely, 2^74263620 is an apocalyptic number.

It is an amenable number.

74263620 is an abundant number, since it is smaller than the sum of its proper divisors (133674684).

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

74263620 is a wasteful number, since it uses less digits than its factorization.

74263620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237739 (or 1237737 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 74263620 is about 8617.6342461258. The cubic root of 74263620 is about 420.3315975393.

Adding to 74263620 its reverse (2636247), we get a palindrome (76899867).

The spelling of 74263620 in words is "seventy-four million, two hundred sixty-three thousand, six hundred twenty".