74462140 has 72 divisors (see below), whose sum is σ = 171203760. Its totient is φ = 27127296.

The previous prime is 74462107. The next prime is 74462183. The reversal of 74462140 is 4126447.

It is a super-2 number, since 2×74462140² = 11089220586759200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74462099 and 74462108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319464 + ... + 319696.

It is an arithmetic number, because the mean of its divisors is an integer number (2377830).

Almost surely, 2^74462140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74462140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85601880).

74462140 is an abundant number, since it is smaller than the sum of its proper divisors (96741620).

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

74462140 is a wasteful number, since it uses less digits than its factorization.

74462140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 74462140 is about 8629.1448011955. The cubic root of 74462140 is about 420.7058049245.

Adding to 74462140 its reverse (4126447), we get a palindrome (78588587).

The spelling of 74462140 in words is "seventy-four million, four hundred sixty-two thousand, one hundred forty".