74272410 has 32 divisors (see below), whose sum is σ = 198060480. Its totient is φ = 19805904.

The previous prime is 74272409. The next prime is 74272411. The reversal of 74272410 is 1427247.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74272409) and next prime (74272411).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (74272411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137272 + ... + 137811.

It is an arithmetic number, because the mean of its divisors is an integer number (6189390).

Almost surely, 2^74272410 is an apocalyptic number.

74272410 is an abundant number, since it is smaller than the sum of its proper divisors (123788070).

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

74272410 is a wasteful number, since it uses less digits than its factorization.

74272410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275099 (or 275093 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 74272410 is about 8618.1442317938. The cubic root of 74272410 is about 420.3481806657.

Adding to 74272410 its reverse (1427247), we get a palindrome (75699657).

It can be divided in two parts, 74 and 272410, that added together give a square (272484 = 522²).

The spelling of 74272410 in words is "seventy-four million, two hundred seventy-two thousand, four hundred ten".