72214542 has 36 divisors (see below), whose sum is σ = 158473224. Its totient is φ = 23765400.

The previous prime is 72214537. The next prime is 72214547. The reversal of 72214542 is 24541227.

It is an interprime number because it is at equal distance from previous prime (72214537) and next prime (72214547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72214547) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 442953 + ... + 443115.

It is an arithmetic number, because the mean of its divisors is an integer number (4402034).

Almost surely, 2^72214542 is an apocalyptic number.

72214542 is an abundant number, since it is smaller than the sum of its proper divisors (86258682).

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

72214542 is a wasteful number, since it uses less digits than its factorization.

72214542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 319 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 72214542 is about 8497.9139793246. The cubic root of 72214542 is about 416.4295635204.

Adding to 72214542 its reverse (24541227), we get a palindrome (96755769).

The spelling of 72214542 in words is "seventy-two million, two hundred fourteen thousand, five hundred forty-two".