72261342 has 32 divisors (see below), whose sum is σ = 160860960. Its totient is φ = 24045120.

The previous prime is 72261317. The next prime is 72261347. The reversal of 72261342 is 24316227.

72261342 is a `hidden beast` number, since 7 + 2 + 2 + 613 + 42 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72261347) 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, 54042 + ... + 55362.

It is an arithmetic number, because the mean of its divisors is an integer number (5026905).

Almost surely, 2^72261342 is an apocalyptic number.

72261342 is an abundant number, since it is smaller than the sum of its proper divisors (88599618).

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

72261342 is a wasteful number, since it uses less digits than its factorization.

72261342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2339 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 72261342 is about 8500.6671502889. The cubic root of 72261342 is about 416.5195024464.

Adding to 72261342 its reverse (24316227), we get a palindrome (96577569).

The spelling of 72261342 in words is "seventy-two million, two hundred sixty-one thousand, three hundred forty-two".