72042914 has 4 divisors (see below), whose sum is σ = 108064374. Its totient is φ = 36021456.

The previous prime is 72042913. The next prime is 72042941. The reversal of 72042914 is 41924027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41924027 = 5657 ⋅7411.

It can be written as a sum of positive squares in only one way, i.e., 48762289 + 23280625 = 6983^2 + 4825^2 .

It is a super-2 number, since 2×72042914² = 10380362915222792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72042913) 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 as a sum of consecutive naturals, namely, 18010727 + ... + 18010730.

Almost surely, 2^72042914 is an apocalyptic number.

72042914 is a deficient number, since it is larger than the sum of its proper divisors (36021460).

72042914 is a wasteful number, since it uses less digits than its factorization.

72042914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36021459.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 72042914 is about 8487.8097292529. The cubic root of 72042914 is about 416.0994007107.

It can be divided in two parts, 720 and 42914, that added together give a palindrome (43634).

The spelling of 72042914 in words is "seventy-two million, forty-two thousand, nine hundred fourteen".