72143414 has 16 divisors (see below), whose sum is σ = 127017888. Its totient is φ = 30082752.

The previous prime is 72143413. The next prime is 72143431. The reversal of 72143414 is 41434127.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72143411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69119 + ... + 70154.

It is an arithmetic number, because the mean of its divisors is an integer number (7938618).

Almost surely, 2^72143414 is an apocalyptic number.

72143414 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

72143414 is a deficient number, since it is larger than the sum of its proper divisors (54874474).

72143414 is a wasteful number, since it uses less digits than its factorization.

72143414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139319.

The product of its digits is 2688, while the sum is 26.

The square root of 72143414 is about 8493.7279212369. The cubic root of 72143414 is about 416.2927972902.

The spelling of 72143414 in words is "seventy-two million, one hundred forty-three thousand, four hundred fourteen".